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Thyroid Gland, Hormones and Thyroid Problems, Animation
 
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Regulation of thyroid hormone, hyper- and hypothyroidism: causes, symptoms and treatment, goiter. This video and similar images/videos are available for instant download licensing here https://www.alilamedicalmedia.com/-/galleries/images-videos-by-medical-specialties/endocrinology Voice by: Sue Stern ©Alila Medical Media. All rights reserved. Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. The thyroid is a butterfly-shaped ENDOCRINE gland located in the neck. It is wrapped around the trachea, just below the thyroid cartilage –the Adam’s apple. The two major hormones of the thyroid are triiodothyronine, T3 and thyroxine, T4. The numbers 3 and 4 indicate the number of iodine atoms present in a molecule of each hormone. T3 and T4 are collectively referred to as THYROID hormones. Thyroid hormone secretion is under control of thyroid-stimulating hormone, TSH, from the anterior pituitary. TSH, in turn, is induced by thyrotropin-releasing hormone, TRH, produced by the hypothalamus. The amount of circulating thyroid hormones is regulated by a negative feedback loop: when their levels are too high, they SUPPRESS the production of TSH and TRH, consequently INHIBITING their own production. Thyroid hormones act to INCREASE the body’s metabolic rate. They stimulate appetite, digestion, breakdown of nutrients and absorption. They also increase oxygen consumption, raise the breathing rate, heart rate and contraction strength. As a result, the body’s HEAT production is INCREASED. Thyroid hormone secretion usually rises in winter months to keep the body warm. Thyroid hormones are also important for bone growth and fetal brain development. There are 2 major groups of thyroid problems: HYPOthyroidism: when the thyroid does NOT produce ENOUGH hormones, resulting in a LOW metabolic rate, combined with SLOW respiratory and cardiovascular activities. Common symptoms include fatigue, weight gain despite poor appetite, cold intolerance, slow heart rate, heavy menstrual bleeding and constipation. Iodine deficiency and Hashimoto's thyroiditis are the most common causes. Hashimoto's thyroiditis is an autoimmune disease in which the thyroid gland is gradually destroyed by the body’s own immune system. Hypothyroidism, especially when caused by iodine deficiency, may lead to swelling of the thyroid gland, known as GOITER. In an attempt to fix the low levels of thyroid hormones, the pituitary produces MORE TSH to further stimulate the thyroid gland. The thyroid, while UNable to make hormones WITHOUT iodine, responds to TSH by GROWING in size. Hypothyroidism is managed with thyroxine hormone replacement. HYPERthyroidism: when the thyroid gland produces TOO MUCH hormones, resulting in a TOO ACTIVE metabolism, together with respiratory and cardiovascular rates that are HIGHER than necessary. Common symptoms include irritability, insomnia, weight loss despite good appetite, heat intolerance, heart racing and diarrhea. Hyperthyroidism is most commonly caused by Graves' disease, another autoimmune disorder characterized by presence of an antibody, called thyroid stimulating immunoglobulin, TSI. TSI, similar to TSH, stimulates the thyroid gland to produce hormones. Unlike TSH, however, TSI is NOT regulated by negative feedback mechanisms, leading to UNcontrolled production of thyroid hormones. TSI also stimulates the thyroid gland to grow, which MAY lead to formation of a goiter. Hyperthyroidism may be managed with drugs that suppress thyroid function, radioactive iodine that selectively destroys the thyroid gland, or surgery that removes part of the gland.
Просмотров: 127842 Alila Medical Media
Thyroid Gland - Thyroid Hormones
 
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http://armandoh.org/ Talks in detail about thyroid hormones IMAGE: https://docs.google.com/open?id=0B8Ss3-wJfHrpbWpjVC1ZMVN6c1k https://www.facebook.com/ArmandoHasudungan Support me: http://www.patreon.com/armando Instagram: http://instagram.com/armandohasudungan Twitter: https://twitter.com/Armando71021105
Просмотров: 598343 Armando Hasudungan
Thyroid Gland: Thyroid Hormone Synthesis
 
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This lesson explores how the thyroid gland synthesizes and secretes thyroid hormones. In particular, what thyroid hormones are, iodide transport, the enzyme involved in thyroid hormone synthesis, and how thyroid hormones are secreted from the follicular cells of the thyroid gland.
Просмотров: 74284 Lance Miller, PhD
THYROID HORMONES
 
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For more information: http://www.7activestudio.com info@7activestudio.com http://www.7activemedical.com/ info@7activemedical.com http://www.sciencetuts.com/ Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use.
Просмотров: 21174 7activestudio
Thyroid Gland: Thyroid Hormone Function
 
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This lesson explores the physiological role of thyroid hormones. In particular, thyroid hormone transport into target cells, conversion of T4 to T3, binding the nuclear receptor, genomic regulation, and target gene function.
Просмотров: 52181 Lance Miller, PhD
Thyroid Gland
 
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Explanation of Thyroid Gland and hormone secreted. Also, explanation of various diseases caused due to abnormal secretion of hormones. -~-~~-~~~-~~-~- Please watch: "ASEXUAL REPRODUCTION and VEGETATIVE PROPAGATION" https://www.youtube.com/watch?v=f40Sd6j1Z8g -~-~~-~~~-~~-~-
Просмотров: 9570 BIEN Biology Is Easy now
Thyroid Hormones Synthesis - Thyroid Gland
 
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Thyroid Hormone Synthesis - Thyroid Gland. This is a teaser video. Watch the complete lecture in member's area at https://www.DrNajeebLectures.com Thyroid hormones are two hormones produced and released by the thyroid gland, namely triiodothyronine (T3) and thyroxine (T4). They are tyrosine-based hormones that are primarily responsible for regulation of metabolism. ─────────────── DR. NAJEEB LECTURES ─────────────── Dr. Najeeb Lectures are the World's Most Popular Medical Lectures. Over 1 Million+ students from 190 countries trust Dr. Najeeb Lectures to Master Medical Sciences. Sign up for a membership plan on our website and access 800+ videos on Basic Medical Sciences & Clinical Medicine. Weekly new videos for members with download option. ───────────────── OUR YOUTUBE CHANNEL ───────────────── Here on YouTube, we only upload free sample videos. Most of them are teaser videos (not complete lectures). If you like these videos you can check out our entire video library on our website at https://www.DrNajeebLectures.com. ────────────────────── WHY SIGN UP FOR MEMBERSHIP? ────────────────────── ► 800+ Medical Lectures. ► Basic Medical Sciences. ► Clinical Medicine. ► New videos every week in HD. ► Download videos for offline access. ► Fast video playback (0.5x - 2x) ► Watch videos on any device. ► Fanatic customer support. ► Trusted by 1 Million+ students. Learn more at https://www.DrNajeebLectures.com
Просмотров: 8068 Dr. Najeeb Lectures
3 - Thyroid Glands : Hormones Physiology
 
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The video describes the process of formation and control of thyroid hormone
Просмотров: 90071 Aim MDS
Endocrine System, part 1 - Glands & Hormones: Crash Course A&P #23
 
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Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades, and how the HPA axis effects your stress response. Table of Contents Endocrine System 2:32 Glands Produce Hormones 2:58 Amino Acid Based and Water Soluble 4:18 Steroidal and Lipid Soluble 4:44 Hormone Cascades 6:15 HPA Axis Effects Your Stress Response 6:30 *** Crash Course Psychology Poster: http://www.dftba.com/crashcourse *** Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Jan Schmid, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode ***SUBBABLE MESSAGES*** TO: Laura Hewett FROM: Amy Paez Greetings from the other side of the world! DFTBA -- TO: Wesley FROM: G Distance is created by the Desert Otherworld, therefore we shall not be destroyed. ***SUPPORTER THANK YOU!*** Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Mickey Maloney, Dan Smalley, Stephen DeCubellis, Vanessa Benavent, Andrew Galante, LankySam!, David Costello, Vanessa Benavent, Kenzo Yasuda, Tessa White -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Просмотров: 2323695 CrashCourse
Human Physiology - Thyroid Hormone Feedback and Function
 
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“Human Physiology” is a free online course on Janux that is open to anyone. Learn more at http://janux.ou.edu. Created by the University of Oklahoma, Janux is an interactive learning community that gives learners direct connections to courses, education resources, faculty, and each other. Janux courses are freely available or may be taken for college credit by enrolled OU students. Dr. Heather R. Ketchum is an Associate Professor of Biology. Video produced by NextThought (http://nextthought.com). Copyright © 2000-2014 The Board of Regents of the University of Oklahoma, All Rights Reserved.
Просмотров: 36886 Janux
How does the thyroid manage your metabolism? - Emma Bryce
 
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View full lesson: http://ed.ted.com/lessons/how-does-the-thyroid-manage-your-metabolism-emma-bryce↵↵Nestled in the tissues of your neck is a small, unassuming organ that wields enormous power over your body: the thyroid. Emma Bryce explains how the thyroid, like the operations manager in a company, is tasked with making sure that all the cells in your body are working properly. ↵↵Lesson by Emma Bryce, animation by Tremendousness.
Просмотров: 700261 TED-Ed
How To Cure Your Thyroid Gland And Balance Its Hormones
 
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How to cure your thyroid gland and balance its hormones. If your thyroid is not functioning properly, every system in your body will slow down. #Thyroid #ThyroidGlad #Health Music: https://www.youtube.com/audiolibrary/music Summary: How Does the Thyroid Function: The thyroid hormones in our body regulate our metabolism and all of our organ functions. They directly affect our heart rate, cholesterol level, energy, muscle, body weight, and our skin and hair texture. It also affects our memory, mood, and other important bodily functions. One of the main disorders that cause this is called hypothyroidism. Those who feel tired or sleep a lot suffer from this disorder. They typically have a slow digestion and have significant weight gain. They may also experience dry skin, slower thinking and hair loss. Signs of Hypothyroidism: There are many different symptoms of an underactive thyroid. Many people do not even show any signs. 4. Poor Memory: This symptom is in direct correlation with unexplained fatigue. Naturally when we become tired, our brain functionality is not working at its best. So trying to remember things while trying to stay awake is not sustainable, hence why we begin to have poor memory. This may be caused by a thyroid disorder. Sometimes when people experience extreme fatigue, their brains can become overwhelmed and they begin to feel confused. This confusion can leak into other parts of their lives, resulting in extreme forgetfulness and the inability to complete regular everyday tasks. 3. Feeling Cold: If you live in a country that has very cold temperatures, than this might not be the best symptom to go off of. However, if the temperature is warm and you are still feeling cold, or if the temperature is cold and your body is not adjusting to it at all, you may have a thyroid disorder. 2. Dry Skin, Brittle Hair and Split Ends: If you find that your skin is dry in several different places on your body, and that your hair has become very thin with split ends, you might have a thyroid disorder. 1. Unexplained Fatigue: We all get exhausted at some point. Whether it’s a long day at work, or juggling school and work, our bodies do need a break. However, if you find that you’re losing energy at a time in the day that you’re usually energetic, it could be hypothyroidism. It’s best to monitor this situation and see if it keeps occurring. You may feel unusually tired even if you are eating right and getting enough rest. ---------------------------------------------------------------------------------------- Subscribe to Bestie : https://goo.gl/tUqro6 ---------------------------------------------------------------------------------------- Our Social Media: Facebook: https://www.facebook.com/bestieinc/ ---------------------------------------------------------------------------------------- For more videos and articles visit: http://www.bestie.com/
Просмотров: 1603 Bestie
Thyroid Gland Physiology made simple- in HD
 
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Please watch: "LEARN HEART SOUNDS IN 20 MINUTES!!!" https://www.youtube.com/watch?v=NrdZhCXtc7Q -~-~~-~~~-~~-~- ▶▶▶ Watch More Videos at http://www.ftplectures.com◀◀◀ The thyroid gland physiology entails the production of thyroid hormones, thyroxine which is needed for growth, CNS maturation, and metabolism in the body.
Просмотров: 150365 ftplectures
Thyroid Hormone Production
 
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http://www.handwrittentutorials.com - This tutorial takes a look at the production of thyroid hormones in the Thyroid Gland. This includes the transport of iodine and the production of thyroglobulin in the Thyroid Follicles. For more entirely FREE tutorials and accompanying PDFs visit http://www.handwrittentutorials.com
Просмотров: 283879 Handwritten Tutorials
Endocrinology | Synthesis of Thyroid Hormone
 
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Ninja Nerds, SUPPORT | https://www.gofundme.com/ninja-nerd-science Join us in this video where we discuss the synthesis of thyroid hormone, and the steps needed to produce this hormone. ***PLEASE SUPPORT US*** PATREON | https://www.patreon.com/NinjaNerdScience ***EVERY DOLLAR HELPS US GROW & IMPROVE OUR QUALITY*** FACEBOOK | https://www.facebook.com/NinjaNerdScience INSTAGRAM | https://www.instagram.com/ninjanerdscience/ ✎ For general inquiries email us at: NinjaNerdScience@gmail.com
Просмотров: 26677 Ninja Nerd Science
Thyroid Gland Function
 
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Просмотров: 12315 susannaheinze
8 Signs That Indicate Problem With Thyroid Gland
 
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8 Signs That Indicate Problem With Thyroid Gland The thyroid, located in the neck, is a vital body gland, as it is responsible for numerous functions in the body. It produces hormones that regulate the metabolism, so the imbalance of those hormones severely affects the natural balance of the body. Yet, the thyroid dysfunction is hard to be diagnosed, as its symptoms are similar to other health issues. Therefore, it is of high importance to recognize its symptoms and solve these problems on time. These are the 8 symptoms of thyroid issues that should not be ignored: Frequent pains in the muscles or joints– This is an indication that should not be ignored, so you must visit your doctor and check whether you are experiencing thyroid issues. Bloating and swelling – Hypothyroidism can often lead to bloating. On the other hand, if you notice swelling or puffiness in the face, you should immediately check your thyroid gland. Trembling and anxiety – Sometimes, the excessive production of thyroid hormones may lead to accelerated metabolism and thus can make you feel irritated, nervous, shaky, and you can also experience concentration issues. Weight changes – Hypothyroidism can lead to unexplained weight gain, and on the other hand, hyperthyroidism can lead to rapid weight loss. Irregular menstruation – Thyroid problems can cause two kinds of abnormal menstruation: hypothyroidism leads to extremely difficult and long menstruation and hyperthyroidism causes small flow or no menstrual cycle at all. Change in mental functions – Reduced levels of thyroid hormones cause constant fatigue and feelings of tiredness and dizziness. Abnormal reaction to the temperature outside – In the case of thyroid gland disorders, people may react differently to the temperature outside than others. In the case of hyperthyroidism, people feel abnormal warmness, while the ones with hypothyroidism feel unnatural cold. Hair loss, facial pallor – The thyroid gland issues can also be manifested by hair loss, weak, brittle and dry hair. https://youtu.be/nISFLnLPoTc
Просмотров: 446241 Susana Home Remedies
The Endocrine System, Overview, Animation
 
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Function of the endocrine system, mechanism of action of steroid and nonsteroid hormones, major endocrine organs, functions and negative feedback control. This video and other related images/videos (in HD) are available for instant download licensing here: https://www.alilamedicalmedia.com/-/galleries/images-videos-by-medical-specialties/endocrinology ©Alila Medical Media. All rights reserved. Voice by Ashley Fleming Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia/posts All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. The endocrine system is one of the two systems that are responsible for communication and integration between various body tissues, the other being the nervous system. Endocrine communication is achieved by means of chemical messengers called hormones. Hormones are produced in endocrine glands and secreted into the bloodstream to reach body tissues. A hormone can travel wherever the blood goes, but it can only affect cells that have receptors for it. These are called target cells. There are 2 major types of hormones: steroid hormones derived from cholesterol and are lipid-soluble; and non-steroid hormones derived from peptides or amino-acids and are water-soluble. Lipid-soluble steroid hormones can cross the cell membrane to bind to their receptors inside the cell, either in the cytoplasm or nucleus. Steroid hormone receptors are typically transcription factors. Upon forming, the hormone/receptor complex binds to specific DNA sequences to regulate gene expression, and thus mediating cellular response. On the other hand, water-soluble non-steroid hormones are unable to cross the lipid membrane and therefore must bind to receptors located on the surface of the cell. The binding triggers a cascade of events that leads to production of cAMP, a second messenger that is responsible for cellular response to hormone. It does so by changing enzyme activity or ion channel permeability. Major endocrine glands include: the hypothalamus, pituitary gland, pineal gland, thyroid and parathyroid glands, thymus, adrenal gland, islets of the pancreas, and testes in men or ovaries in women. The endocrine system also includes hormone-secreting cells from other organs such as kidneys and intestine. Except for the hypothalamus and the pituitary, different endocrine glands are involved in different, more or less independent, processes. For example, the pancreas produces insulin and glucagon that keep blood sugar levels in check; the parathyroid glands produce hormones that regulate calcium and phosphorus; thyroid hormones control metabolic rates; while the ovaries and testes are involved in reproductive functions. On the other hand, the hypothalamus and pituitary gland play a more central, integrative role. The hypothalamus is also part of the brain. It secretes several hormones, called neuro-hormones, which control the production of other hormones by the pituitary. Thus, the hypothalamus links the nervous system to the endocrine system. The pituitary is known as the master gland because it controls the functions of many other endocrine glands. A major role of the endocrine system is to maintain the body’s stable internal conditions, or homeostasis, such as blood sugar levels or serum calcium levels. To do this, it utilizes negative feedback mechanisms, which work very much like a thermostat: the heater is on when the temperature is low, off when it’s high. For example, when blood glucose level is high, such as after a meal, glucose induces insulin release from the pancreas. Insulin helps body cells consume glucose, clearing it from the blood. Low blood glucose can no longer act on the pancreas, which now stops releasing insulin. Another example is the regulation of thyroid hormones levels which are induced by a pituitary hormone called thyroid-stimulating hormone, TSH. TSH, in turn, is under control of thyrotropin-releasing hormone, TRH, from the hypothalamus. When thyroid hormone levels are too high, they suppress the secretion of TSH and TRH, consequently inhibiting their own production.
Просмотров: 4626 Alila Medical Media
Thyroid gland - What's the function of the thyroid?
 
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In this animation thyroid gland, its structure and function along with the hormones produced are described. Watch the animation "Thyroid problems - most common thyroid problems, symptoms and treatment" to learn more about different thyroid problems. Healthchannel makes complex medical information easy to understand. With 2D and 3D animations checked by medical specialists, we give information on certain diseases: what is it, what are the causes and how is it treated? Subscribe to our Youtube channel and learn more about your health! Healthchannel Youtube channel: http://www.youtube.com/cherishyourhealthtv Subscribe here: http://www.youtube.com/subscription_center?add_user=cherishyourhealthtv Like us on Facebook: https://www.facebook.com/pages/Healthchannel-cherishyourhealth/277559669029535 Have a look at our other channels as well: http://www.youtube.com/gezondheidspleintv http://www.youtube.com/user/sehtaktv Thanks for watching! Don't forget to like our video and leave a comment.
Просмотров: 253585 Healthchanneltv / cherishyourhealthtv
Thyroid Gland - Chemical Coordination & Integration - NEET & AIIMS preparation videos
 
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BUY to Enroll in FULL NEETPrep Online Video Course. Call or Whatsapp at 8527521718. NEETPrep Online Video course contains 500+ hours of videos covering all 97 chapters(PCB) in NEET Syllabus. Enroll today to SMARTLY prepare for NEET Exam.
Просмотров: 84233 NEETprep
Endocrine System - Thyroid & Pituitary Glands & Hormones
 
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Endocrine System includes Tyhroid Gland as well as the Pituitary Gland that is controled by the hormones of Hypothalamus. ✅ https://www.AnimatedAnatomy.com/ ✅ ◄◄◄Click To Buy Our Anatomical Software And Lessons I explained almost all the hormones that can be found in these glands and it is really important to learn them all. http://www.biodigitalhuman.com/. Music. Easy Lemon 60 Second by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Continue Life by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Breast Anatomical Illustration: Original author: Patrick J. Lynch. Reworked by Morgoth666 to add numbered legend arrows. - Patrick J. Lynch, medical illustrator This file is licensed under the Creative Commons Attribution 3.0 Unported license. Please, subscribe to get our newest videos and lessons: http://www.youtube.com/subscription_c... My Facebook fan page: https://www.facebook.com/FahriceDjozic3
Просмотров: 5776 Animated Anatomy
Thyroid Gland and Thyroid Hormones - [T3, T4, Thyroglobulin, Iodide Trapping etc.]
 
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In this video will have a look at the Thyroid Gland and the process of thyroid hormone production. The Thyroid secretes hormones that govern many of the metabolic and growth functions in your body, the hormones are called thyroxine and triiodothyronine, commonly called T4 and T3, respectively. Under the influence of a hormone secreted by the Anterior Pituitary gland, which is called thyroid stimulating hormone, the thyroid will manufacture and secrete T3 and T4 thereby raising their blood levels. Thyroid hormone production: About one fifth of ingested iodides are selectively removed from the circulating blood by the cells of the thyroid gland and used for synthesis of the thyroid hormones. The iodides first have to leave the circulation and enter the thyroid cells. This is achieved by the action of a sodium-iodide symporter, which co-transports one iodide ion along with two sodium ions across the basolateral membrane into the thyroid cell. This symporter uses the sodium gradient that is created by another pump: the sodium-potassium ATPase pump. Once inside the follicular epithelial cells, Iodide is transported into the follicle: across the apical membrane: by pendrin. Thyroglobulin contain tyrosine amino acids to which the iodide ions will bind. T3 and T4 are produced within the thyroglobulin molecule. Conversion of the iodide ions to an oxidized form of iodine. This process is promoted by the enzyme peroxidase. The second steps is organification of thyroglobulin. Which means the Iodination of Tyrosine and Formation of the Thyroid Hormones. This process results in both monoiodotyrosine (MIT) and diiodotyrosine (DIT). DIT and MIT will combine to form T3 and T4. Another important thing to remember is the fact that not all DIT and MIT will combine, therefore the current thyroglobulin will contain all before mentioned forms: MIT, DIT, T3 and T4. Also the proportions in T3 and T4 are different: each thyroglobulin molecule contains up to 30 thyroxine (or T4) molecules and just a few triiodothyronine (or T3) molecules. Interestingly, in this form, the thyroid hormones are stored in the follicles in an amount sufficient to supply the body with its normal requirements of thyroid hormones for 2 to 3 months. Therefore, when synthesis of thyroid hormone is decreased, the physiologic effects of deficiency are not observed for several months. Now we will have a look at the process of releasing the hormones into the circulation. The apical surface of the thyroid cells close around the thryroglobulins. This creates pinocytic vesicles in the cells. The vesicles will fuse with lysosomes to digest and cleave the thyroglublin molecules and release thyroxine and triiodothyronine in free form. These T3 and T4 molecules will diffuse into the surrounding capillaries, so they enter the blood circulation. In the circulation, they will combine with plasma proteins known as thyroxine-binding globulin. Because about 75 percent of the iodinated tyrosine in the thyroglobulin will remain monoiodotyrosine and diiodotyrosine, this is not functional and therefore should not enter the circulation. Instead, the iodine is cleaved from them by a deiodinase enzyme, making the iodine available for recycling in new hormones. About 93 percent of the thyroid hormone released from the thyroid gland is normally thyroxine and only 7 percent is triiodothyronine. However, in the peripheral tissues, T4 will be turning into T3 for a great part: its deiodinated. So, simply said, the function of the thyroid gland is to take iodide, found in many foods, and convert it into thyroid hormones: thyroxine (T4) and triiodothyronine (T3). So what is the role of these thyroid hormones actually? The general effect of thyroid hormone is to activate nuclear transcription of large numbers of genes, hereby causing a higher basic metabolic rate, mainly through induction of increased protein synthesis. The net result is generalized increase in functional activity throughout the body. Increased activity is for example seen in the cardiovascular system, growth rate, and the central nervous system. Without thyroxine and triiodothyronine from the thyroid gland, almost all the chemical reactions of the body would become sluggish and the person would become sluggish as well. A final, clinically important, thing to know: During development (inside the womb) the thyroid gland originates in the back of the tongue, but it normally migrates to the front of the neck before birth. Sometimes it fails to migrate properly and is located high in the neck or even in the back of the tongue. Do you want to know how the hypothalamus and the Thyroid stimulating hormone from the pituitary gland are regulating the thyroid hormone production: https://youtu.be/QG-UbtFEc_c
Просмотров: 30076 TheMedicalZone
Thyroid and Parathyroid glands 2-2-16
 
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Description of the thyroid gland, its hormones (T3, T4, and calcitonin), and some thyroid disorders. Description also of the parathyroid glands and parathyroid hormone.
Просмотров: 5885 Ren Hartung
Thyroid Gland
 
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Donate here: http://www.aklectures.com/donate.php Website video: http://www.aklectures.com/lecture/thyroid-gland Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Просмотров: 45828 AK LECTURES
What Are The Hormones Secreted By The Thyroid Gland?
 
00:45
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Просмотров: 44 Question Time
Thyroid Gland: Hypothalamic-Pituitary-Thyroid Axis - Role of Thyroid Stimulating Hormone (TSH)
 
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This lesson explores the regulation of thyroid stimulating hormone (TSH) synthesis and secretion, as well as how TSH regulates the synthesis and secretion of the thyroid hormones T3 and T4. TSH is synthesized and secreted by thyrotrophs within the anterior pituitary. Thyrotropin releasing hormone (TRH) stimulates the synthesis and secretion of TSH, while T3 inhibits the synthesis and secretion of TSH in a negative-feedback loop. TSH stimulates the synthesis and secretion of T3 and T4 by regulating most aspects of T3 and T4 synthesis and secretion. For help preparing for an exam on this and other topics, visit http://www.aniveo.com
Просмотров: 20528 Lance Miller, PhD
Thyroid Gland: Function, Anatomy, Hormones & Disorders
 
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You probably know that your thyroid is important, but do you really understand how it functions or works in your body? The goal of this video is to teach you all of the basics about thyroid function including how your thyroid gland works, how it is regulated, and what issues can arise. Your thyroid gland is highly regulated at multiple levels. And if there is a problem at any level of regulation you may start to experience certain symptoms. Understanding each level will help you realize why the standard approach to thyroid management is often insufficient. In order for the thyroid gland to function optimally, there are no less than 6 important steps that must work correctly. These steps include: 1. TRH secretion - TRH is secreted from the hypothalamus and it acts on your pituitary to stimulate it to release TSH. 2. TSH secretion - TSH or thyroid stimulating hormone is the hormone that most doctors evaluate when they look at thyroid function. The job of TSH is to act directly on your thyroid gland to produce thyroid hormones T4 and T3. 3. Thyroid gland secretion of thyroid hormones - Once the thyroid is stimulated it releases both T4 and T3. About 80% of the thyroid that it releases is T4 and about 20% is T3. 4. Thyroid hormone conversion - The vast majority of thyroid hormone released is in the T4 form but in order to become active your body must convert it to the active T3 thyroid hormone. The process by which this occurs is known as thyroid conversion. Any problem in thyroid conversion may reduce the total effective concentration of T3 in the body and lead to symptoms even if your T4 levels are normal! 5. Thyroid hormone cellular activation - Once released and converted, your body still must use thyroid hormone at the cellular level. Your body has developed a mechanism to regulate this step which is the conversion of T4 to an anti-thyroid metabolite known as reverse T3. Reverse T3 and T3 both compete for binding on your cells. If you have too much of reverse T3 then it can effectively block T3 from doing its job. This means you can go through all of the steps listed above but still have problems! 6. Feedback loop - Lastly, your thyroid gland communicates back with the hypothalamus through thyroid hormones to tell your brain if the entire process is working. Problems can occur at all 6 stages and may not be picked up with the standard TSH lab test. In order to recognize these other problems, you may need more advanced tests including free t3, reverse T3, and free T4. This video will help you understand the importance of all of these steps and help you put the big picture together on how your thyroid functions. If you are interested in having Dr. Childs evaluate your labs you can find more information here: https://www.restartmed.com/lab-testing/ You can read more on my website here: https://www.restartmed.com/ This video is not intended to be used as medical advice. If you have questions about your health please consult your physician or primary care provider. Dr. Westin Childs goes to great lengths to produce high quality content but this is NOT a substitute for medical care.
Просмотров: 677 Dr. Westin Childs
A Famous Tibetan Exercise for the Treatment of the Thyroid Gland
 
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A Famous Tibetan Exercise for the Treatment of the Thyroid Gland Through the hormones it produces, the thyroid gland influences almost all of the metabolic processes in your body. Thyroid disorders can range from a small, harmless goiter (enlarged gland) that needs no treatment to life-threatening cancer. The most common thyroid problems involve abnormal production of thyroid hormones. Too much thyroid hormone results in a condition known as hyperthyroidism. Insufficient hormone production leads to hypothyroidism. This is the famous Tibetan exercise for the treatment of the thyroid gland. This exercise provides an increased blood flow to the gland. Consequently, your thyroid gland will be purified. STEP 1 – Rub your palms well in order to heat them up. Then gently place the palms on the thyroid gland and hold them there for maybe ten seconds. STEP 2 – Three times in a row you need to swallow your saliva or drink three sips of water. STEP 3 – Slowly exhale. As you exhale, bend your head forward and press your chin to your chest as hard as you can. Hold your chin a few seconds without breathing. When you begin to breathe, lift your chin up and throw your head back. Hold your head in this position for a while. Once you start exhaling, press your chin against your chest again. STEP 4 – While your chin is on your chest, slowly turn your head to the left and right, never taking the chin off the chest. In this way, an excellent massage is performed on the thyroid. Repeat steps 1, 2, 3, 4. Your head rises to inhaling and lowers with the exhalation. And so on, for ten times. The exercise can be done in a sitting or standing position. It is necessary to do it often, as it leads to improving the state of the thyroid gland. It is especially useful for hypothyroidism. As with other Tibetan exercises, the psychological component is also important. Do the exercises with love for your body and your diseased thyroid gland.
Просмотров: 10514 Natural Remedies
Thyroid Gland  in Hindi
 
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This video is about Thyroid Gland Physiology in Hindi. ---------------------------------- Quiz https://docs.google.com/forms/d/e/1FAIpQLSf4LJiUPhlgraWzISvc28LREvTqM6N0OXFlmjj5TeGjGTM-0A/viewform?usp=sf_link ---------------------------------- Kindly visit my website http://www.drjs.co.in for more updates.
Просмотров: 4234 Clinical Physiology by Jitendra Shekhar
Thyroid and Parathyroid Glands
 
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This video considers the hormones produced by the thyroid and parathyroid glands.
Просмотров: 22649 Ray Cinti
Thyroid Gland - Thyroid Follicles - Parafollicular Cells - Thyroid Hormones - T3 T4 and Calcitonin
 
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Check out the following links below! Over 1000+ Medical Questions: http://www.5minuteschool.com DONATE + SUPPORT US: http://paypal.me/5minuteschool Patreon: https://goo.gl/w841fz Follow us on Twitter: http://twitter.com/5MinuteSchool Follow us on Instagram: http://instagram.com/5minuteschool My personal Instagram: http://instagram.com/shahzaebb Contact us: contact@5minuteschool.com ______ In this video we talk about the thyroid gland, thyroid follicles, parafollicular cells and hormones which are produced. ◅ Donate: http://www.5minuteschool.com/donate ◅ Website: htttp://www.5minuteschool.com ◅ Twitter: http://www.twitter.com/5minuteschool ◅ Facebook: http://www.facebook.com/5minuteschool ◅ Email: contact@5minuteschool.com
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Thyroid Gland | Structure , Functions & Diseases
 
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The thyroid gland, or simply the thyroid is an endocrine gland in the neck, consisting of two lobes connected by an isthmus. It is found at the front of the neck, below the Adam's apple. The thyroid gland secretes thyroid hormones, which primarily influence the metabolic rate and protein synthesis. The hormones also have many other effects including those on development. The thyroid hormones triiodothyronine (T3) and thyroxine (T4) are created from iodine and tyrosine. The thyroid also produces the hormone calcitonin, which plays a role in calcium homeostasis. https://en.wikipedia.org/wiki/Thyroid
Просмотров: 30517 Hussain Biology
Thyroid Disorders *Types * S&S * Treatments *
 
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Learn about they thyroid gland disorders, quickly & easily. You will find information to help you understand: Goiters, Hypothyroidism, Hyperthyroidism, Thyroid Cancer and More - Including Signs and Symptoms. This videos is to help you on your nursing journey. If you like this video & want to see more, please give this video a thumbs up! See you soon! xoxo - Caroline Additional Resources/quiz: http://empowern.com/2016/01/thyroid-disorders/ Additional Resources: How to Succeed in Nursing School: http://goo.gl/BQZGGu New Nurse? How to Get, Keep and LOVE Your Job: http://goo.gl/1UcKOc Popular Playlist: Nursing Topics: https://www.youtube.com/user/empowern/playlists?shelf_id=10&view=50&sort=dd Nursing Skills: https://www.youtube.com/playlist?list=PLlBYNT9od8CW--GZal67oDirBgb92Chpa Popular Uploads: https://www.youtube.com/user/empowern/videos?shelf_id=3&view=0&sort=p Health & Beauty: https://www.youtube.com/playlist?list=PLlBYNT9od8CWYuDkqrMwwPPYFNZlFp0ZG How to Become a Nurse: https://www.youtube.com/playlist?list=PLlBYNT9od8CXogUuAmXtQxgEpAPxh4lHK New Graduate Nursing Tips: https://www.youtube.com/playlist?list=PLlBYNT9od8CWYgBFp8wuNY9DS_-524Ayx I would like to thank the video contributors: Artem Shestakov Dr. Meena Rizalyn Joy Gadugdug Maria Salvacion Gonzales The thyroid gland is located at the front of the neck. This gland secretes hormones that govern many of the functions in the body, such as the way the body uses energy, consumes oxygen and produces heat. Thyroid disorders typically occur when this gland releases too many or too few hormones. An overactive or underactive thyroid can lead to a wide range of health problems. Hyperthyroidism: Remember, whenever you see: HYPER infront of a word - this means too much of. Hyperthyroidism - this is when the thyroid gland is producing too much thyroid hormone. Causes: There are several causes of hyperthyroidism. Most often, the entire gland is overproducing thyroid hormone. Less commonly, a single nodule is responsible for the excess hormone secretion. The most common cause of hyperthyroidism is Graves disease - this is an autoimmune disease where the body makes an antibody called thyroid-stimulating immunoglobulin, this causes the thyroid gland to make too much thyroid hormone. Thyroiditis - can be another cause, this is inflammation of the thyroid. Remember whenever you see the words “itis”at the end of a word, this means infection. Functional thyroid tissue producing an excess of thyroid hormone occurs in a number of clinical conditions. Hyperthyroidism may be asymptomatic or present with significant symptoms. a mnemonic to help you remember the potential symptoms of hyperthyroidism is SWEATING. The signs and symptoms can include: Sweating, Weight loss, Emotional instability, Appetite increased, Tremor, Irritability, Nervousness, Gastrointestinal problems. More frequent bowel movements may occur, but diarrhea is uncommon. Treatment for hyperthyroidism usually involves medication to reduce the amount of hormones produced by the thyroid. We will go over the medical treatments in a bit. Hypothyroidism - which is also called myxedema Remember - whenever you see: Hypo in front of a word, this means “not enough of.” Hypothyroidism is a thyroid disorder that occurs when the thyroid does not produce enough hormones, which is the opposite of hyperthyroidism. People with hypothyroidism often have no or only mild symptoms. Numerous symptoms and signs are associated with hypothyroidism, and can be related to the underlying cause, or a direct effect of having not enough thyroid hormones. Some of the symptoms of hypothyroidism can be easily remembered by the mnemonic MOM’S TIRED which includes: Memory loss, gOiter, Menorrhagia - which means abnormally heavy bleeding at menstruation, Skin dryness, Tiredness Intolerance to cold, Restlessness, Energy levels are low and Depression. This condition can be treated using a drug called T4. Most patients must stay on T4 for their entire lives, and must be closely monitored by physicians. T4 is the synthetic form of the thyroid stimulating hormone - It is made by many different pharmaceutical companies, sold under names like: Synthroid, Levothyroxine Sodium and Levoxyl to name a few. Causes: Most of the time Hypothyroidism is caused by inadequate function of the gland itself which is known as primary hypothyroidism. It could be caused by not enough stimulation by thyroid-stimulating hormone - which is known as central hypothyroidism. Primary hypothyroidism is much more common than central hypothyroidism. Iodine deficiency is the most common cause of primary hypothyroidism. In areas of the world with sufficient dietary iodine, hypothyroidism is most commonly caused by the autoimmune disease Hashimoto's thyroiditis.
Просмотров: 53207 EmpoweRN
😱 6 Signs and Symptoms that You Have an Underactive Thyroid
 
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Hypothyroidism, also known as underactive thyroid or low thyroid, is a disorder in which the thyroid gland is not able to produce an adequate amount of the hormone called thyroxine. This hormone plays a role in major bodily functions – how your body uses energy, regulates body temperature and digests food, to name a few. A low level of thyroid hormones in the body can interfere with these and other functions. SUBSCRIBE TO OUR CHANNEL AND SHARE VIDEOS WITH ALL YOUR FRIENDS Visit us: http://www.greatlifeandmore.com/ Follow us on FaceBook: https://www.facebook.com/Great-Life-and-more-491202454380757 More info: http://greatlifeandmore.com/index.php/2016/02/19/10-signs-and-symptoms-that-you-have-an-underactive-thyroid/
Просмотров: 18078 Great Life and more...
Gland thyroid: How does it work?
 
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this video is to observe the way in which the thyroid gland works, showing how it produces the hormones secreted. for physiology obstetricia , universidad autonoma.
Просмотров: 17978 Henry OutControl
Disorders of Thyroid Gland explained simply | Bhushan Science
 
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Thyroid disease is a medical condition that affects the function of the thyroid gland (the endocrine organ found at the front of the neck that produces thyroid hormones).[1] The symptoms of thyroid disease vary depending on the type. There are four general types: 1) hypothyroidism (low function) caused by not having enough thyroid hormones; 2) hyperthyroidism (high function) caused by having too much thyroid hormones.
Просмотров: 946 Bhushan Science
The hypothalamus and pituitary gland | Endocrine system physiology | NCLEX-RN | Khan Academy
 
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What makes the endocrine organs tick? Find out in this video about the hypothalamus and pituitary glands! Created by Ryan Scott Patton. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-endocrine-system/rn-the-endocrine-system/v/hormone-concentration-metabolism-negative-feedback?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-endocrine-system/rn-the-endocrine-system/v/endocrine-gland-hormone-review?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/). About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channel/UCDx5cTeADCvKWgF9x_Qjz3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Просмотров: 657622 khanacademymedicine
Alyaa Gad - Thyroid Gland
 
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The thyroid gland is a butterfly-shaped organ located in the base of your neck. It releases hormones that control metabolism—the way your body uses energy. Hormones are the body's chemical messengers. They travel in your bloodstream to tissues or organs to affect many different processes, including Growth and development Metabolism - how your body gets energy from the foods you eat Sexual function Reproduction Mood The thyroid's hormones regulate vital body functions, including: Breathing Heart rate Central and peripheral nervous systems Body weight Muscle strength Menstrual cycles Body temperature Cholesterol levels and more The thyroid gland is about 5 cm long and lies in front of your throat below the prominence of thyroid cartilage sometimes called the Adam's apple. The thyroid has two sides called lobes that lie on either side of your windpipe, and is usually connected by a strip of thyroid tissue known as an isthmus. Some people do not have an isthmus, and instead have two separate thyroid lobes. How the Thyroid Gland Works The thyroid is part of the endocrine system, which is made up of glands that produce, store, and release hormones into the bloodstream so the hormones can reach the body's cells. The thyroid gland uses iodine from the foods you eat to make two main hormones: Triiodothyronine (T3) Thyroxine (T4) It is important that T3 and T4 levels are neither too high nor too low. Two glands in the brain—the hypothalamus and the pituitary communicate to maintain T3 and T4 balance. The hypothalamus produces TSH Releasing Hormone (TRH) that signals the pituitary to tell the thyroid gland to produce more or less of T3 and T4 by either increasing or decreasing the release of a hormone called thyroid stimulating hormone (TSH). When T3 and T4 levels are low in the blood, the pituitary gland releases more TSH to tell the thyroid gland to produce more thyroid hormones. If T3 and T4 levels are high, the pituitary gland releases less TSH to the thyroid gland to slow production of these hormones. Why do we Need a Thyroid Gland T3 and T4 regulate your heart rate and how fast your intestines process food. So if T3 and T4 levels are low, your heart rate may be slower than normal, and you may have constipation/weight gain. If T3 and T4 levels are high, you may have a rapid heart rate and diarrhea/weight loss. If too much T3 and T4 in your body (hyperthyroidism): Anxiety Irritability or moodiness Nervousness, hyperactivity Sweating or sensitivity to high temperatures Hand trembling (shaking) Hair loss Missed or light menstrual periods Some people might experience exopthalmus; If too little T3 and T4 in your body (hypothyroidism): Trouble sleeping Tiredness and fatigue Difficulty concentrating Dry skin and hair Depression Sensitivity to cold temperature Frequent, heavy periods Joint and muscle pain Call your doctor immediately if you’re suffering from any symptoms of the mentioned above. All the best Subscribe to official Alyaa Gad channel : http://bit.ly/AlyaaGad Follow Alyaa Gad : http://www.afham.tv https://www.facebook.com/dr.AlyaaGad https://twitter.com/AlyaaGad
Просмотров: 10664 Alyaa Gad
Hypothalamus and Pituitary Gland Functions, Animation
 
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This is an update of a previously uploaded video. Endocrine functions of the hypothalamus and hypophysis. This video and similar images/videos are available for instant download licensing here https://www.alilamedicalmedia.com/-/galleries/images-videos-by-medical-specialties/endocrinology Voice by: Ashley Fleming ©Alila Medical Media. All rights reserved. Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia/posts All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. The hypothalamus and pituitary gland are at the center of endocrine functions. The hypothalamus is part of the brain, while the pituitary, also called hypophysis, is an endocrine gland. The hypothalamus links the nervous system to the endocrine system via the pituitary gland. The two structures are located at the base of the brain and are connected by a thin stalk. The hypothalamus produces several hormones, known as neurohormones, which control the secretion of other hormones by the pituitary. Pituitary hormones, in turn, control the production of yet other hormones by other endocrine glands. The pituitary has two distinct lobes: The anterior pituitary, also called adenohypophysis, communicates with the hypothalamus via a network of blood vessels known as the hypophyseal portal system. Several neurohormones produced by the hypothalamus are secreted into the portal system to reach the anterior pituitary, where they stimulate or inhibit production of pituitary hormones. Major hormones include: - Gonadotropin-releasing hormone, GnRH, a hypothalamic hormone, stimulates the anterior pituitary to produce follicle-stimulating hormone, FSH, and luteinizing hormone, LH. FSH and LH, in turn, control the activities of the gonads – the ovaries and testes. - Corticotropin-releasing hormone, CRH, promotes the secretion of adrenocorticotropic hormone, ACTH, which in turn stimulates production of cortisol by the adrenal gland. - Thyrotropin-releasing hormone, TRH, promotes the release of thyroid-stimulating hormone, TSH, and prolactin. TSH, in turn, induces the thyroid gland to produce thyroid hormones. Prolactin stimulates the mammary glands to produce milk. - Prolactin-inhibiting hormone, PIH, inhibits production of prolactin. - Growth hormone–releasing hormone, GHRH, promotes production of growth hormone, or somatotropin, which has widespread effects on the growth of various tissues in the body. - Growth hormone–inhibiting hormone, GHIH, or somatostatin, inhibits production of growth hormone. The posterior pituitary, also called neurohypophysis, communicates with the hypothalamus via a bundle of nerve fibers. These are essentially hypothalamic neurons with cell bodies located in the hypothalamus while their axons extend to posterior pituitary. These neurons produce hormones, transport them down the stalk, and store them at the nerve terminals within the posterior pituitary, where they await a nerve signal to trigger their release. Two hormones have been identified so far: - Vasopressin, also known as antidiuretic hormone, ADH, acts on the kidneys to retain water. - and oxytocin, which causes the uterus to contract during childbirth, and stimulates contractions of milk ducts in lactating women.
Просмотров: 5746 Alila Medical Media
Anatomy and Physiology of Thyroid Gland (PART-1)
 
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In this video we discuss about the Anatomy and physiology of Thyroid gland.
Просмотров: 526 Concept Clear
How Does Pituitary Gland Work? Hormones of Hypophysis Functions & Disorders Animation -TSH FSH Video
 
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The pituitary gland is often referred to as the "master gland" of the body, since it regulates many activities of other endocrine glands. Located above the pituitary gland is the hypothalamus. The hypothalamus decides which hormones the pituitary should release by sending it either hormonal or electrical messages. In response to hormonal messages from the hypothalamus, the pituitary gland releases the following hormones: GH (growth hormone) – increases size of muscle and bone TSH (thyroid stimulating hormone) – stimulates the thyroid gland to release T3 and T4 to stimulate metabolism in other cells throughout the body FSH (follicle stimulating hormone) – stimulates ovarian follicle production in women; stimulates sperm production in men LH (luteinizing hormone) – stimulates ovaries to produce estrogen in women; stimulates sperm production in men Prolactin – stimulates breast tissue in nursing mothers to produce milk ACTH (adrenocorticotropic hormone) - causes the adrenal glands to produce important substances that have properties similar to steroids In response to electrical messages from the hypothalamus, the pituitary gland releases the following hormones: ADH (antidiuretic hormone) - stimulates the kidneys to reabsorb fluid and produce less urine Oxytocin – initiates labor, uterine contractions and milk ejection in mothers The pituitary gland, or hypophysis, is an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain. The hypophysis rests upon the hypophysial fossa of the sphenoid bone in the center of the middle cranial fossa and is surrounded by a small bony cavity (sella turcica) covered by a dural fold (diaphragma sellae). The anterior pituitary (or adenohypophysis) is a lobe of the gland that regulates several physiological processes (including stress, growth, reproduction, and lactation). The intermediate lobe synthesizes and secretes melanocyte-stimulating hormone. The posterior pituitary (or neurohypophysis) is a lobe of the gland that is functionally connected to the hypothalamus by the median eminence via a small tube called the pituitary stalk Hormones secreted from the pituitary gland help control the following body processes: Growth Blood pressure Some aspects of pregnancy and childbirth including stimulation of uterine contractions during childbirth Breast milk production Sex organ functions in both males and females Thyroid gland function The conversion of food into energy (metabolism) Water and osmolarity regulation in the body Water balance via the control of reabsorption of water by the kidneys Temperature regulation Pain relief Sleeping patterns (pineal gland) Some of the diseases involving the pituitary gland are: Central diabetes insipidus caused by a deficiency of vasopressin. Gigantism and acromegaly caused by an excess of growth hormone in childhood and adult respectively. Hypothyroidism caused by a deficiency of thyroid-stimulating hormone. Hyperpituitarism, the increased (hyper) secretion of one or more of the hormones normally produced by the pituitary gland. Hypopituitarism, the decreased (hypo) secretion of one or more of the hormones normally produced by the pituitary gland. Panhypopituitarism a decreased secretion of most of the pituitary hormones. Pituitary tumours. Pituitary adenomas, noncancerous tumors that occur in the pituitary gland. Somatotrophins: Human growth hormone (HGH), also referred to as 'growth hormone' (GH), and also as somatotropin, is released under the influence of hypothalamic growth hormone-releasing hormone (GHRH), and is inhibited by hypothalamic somatostatin Thyrotrophins: Thyroid-stimulating hormone (TSH), is released under the influence of hypothalamic thyrotropin-releasing hormone (TRH) and is inhibited by somatostatin. Corticotropins: Adrenocorticotropic hormone (ACTH), and Beta-endorphin are released under the influence of hypothalamic corticotropin-releasing hormone (CRH). Lactotrophins: Prolactin (PRL), also known as 'Luteotropic' hormone (LTH), Gonadotropins: Luteinizing hormone (also referred to as 'Lutropin' or 'LH'). Follicle-stimulating hormone (FSH), both released under influence of Gonadotropin-Releasing Hormone (GnRH) The intermediate lobe synthesizes and secretes the following important endocrine hormone: Melanocyte–stimulating hormone (MSH). This is also produced in the anterior lobe. When produced in the intermediate lobe, MSHs are sometimes called "intermedins". Posterior: Magnocellular Neurons: Antidiuretic hormone (ADH, also known as vasopressin and arginine vasopressin AVP), the majority of which is released from the supraoptic nucleus in the hypothalamus. Oxytocin, most of which is released from the paraventricular nucleus in the hypothalamus.
Просмотров: 196317 AniMed
Thyroid Gland Removal Surgery..!! Thyroidectomy..!! Live Operation
 
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Thyroidectomy::: A thyroidectomy is an operation that involves the surgical removal of all or part of the thyroid gland. Head and Neck or Endocrine Surgeons often perform a thyroidectomy when a patient has thyroid cancer or some other condition of the thyroid gland (such as hyperthyroidism) or goiter. Other indications for surgery include cosmetic (very enlarged thyroid), or symptomatic obstruction (causing difficulties in swallowing or breathing). Thyroidectomy is a common surgical procedure that has several potential complications or sequelae including: temporary or permanent change in voice, temporary or permanently low calcium, need for lifelong thyroid hormone replacement, bleeding, infection, and the remote possibility of airway obstruction due to bilateral vocal cord paralysis. Complications are uncommon when the procedure is performed by an experienced surgeon. The thyroid produces several hormones, such as thyroxine (T4), triiodothyronine (T3), and calcitonin. After the removal of a thyroid, patients usually take a prescribed oral synthetic thyroid hormone—levothyroxine (Synthroid)—to prevent hypothyroidism. Less extreme variants of thyroidectomy include: "hemithyroidectomy" (or "unilateral lobectomy")—removing only half of the thyroid "isthmectomy"—removing the band of tissue (or isthmus) connecting the two lobes of the thyroid A "thyroidectomy" should not be confused with a "thyroidotomy" ("thyrotomy"), which is a cutting into (-otomy) the thyroid, not a removal (-ectomy) of it. A thyroidotomy can be performed to get access for a median laryngotomy, or to perform a biopsy. (Although technically a biopsy involves removing some tissue, it is more frequently categorized as an -otomy than an -ectomy because the volume of tissue removed is minuscule.) Traditionally, the thyroid has been removed through a neck incision that leaves a permanent scar. More recently, minimally invasive and "scarless" approaches such as transoral thyroidectomy have become popular in some parts of the world. Indications Thyroid cancer Toxic thyroid nodule (produces too much thyroid hormone) Multinodular goiter (enlarged thyroid gland with many nodules), especially if there is compression of nearby structures Graves' disease, especially if there is exophthalmos (bulging eyes) Thyroid nodule, if fine needle aspirate (FNA) results are unclear
Просмотров: 20688 SDM
7 Thyroid Symptoms In Women You Must Take Seriously
 
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Let’s take a look at some of the early thyroid symptoms in women. The early thyroid symptoms in women can be treated provided you raise the alarm at the right time. Observe your body more closely, it only helps in the long run. Thyroid is today a common disease in women that is usually a result of a malfunction of the thyroid gland. This thyroid gland located under the Adam’s Apple in the front of the neck is an important organ in maintaining the metabolism of the body. Sometimes this gland either over or under functions. Either condition is harmful for the overall functioning of the heart and other organs of the body. So listen to your body, and watch out for these early thyroid symptoms in women. Hyperthyroid: Over functioning of the thyroid gland produces too much thyroid hormone and this anomaly is called hyperthyroid. This condition puts the major internal functions of the body into an overdrive, and leads to many a symptom such as high stress, diarrhoea, acute ache in the abdomen among others. If left untreated, hyperthyroid can lead to a fatal stroke or cardiac arrest. Hypothyroid: This is the diametric opposite of hyperthyroid where the thyroid gland produces too little thyroid hormone. This leads to the extreme slow functioning of all the major organs of the body. Depression, weight gain are but some of the fall-outs of hypothyroid. A patient not taking medication for this condition can end up in a coma.
Просмотров: 494616 Health and Food
Thyroid Gland and Insulin hormone
 
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Thyroid Gland and Insulin hormone Dr. Barry Sears is a leading authority on the impact of the diet on hormonal response, genetic expression, and inflammation. A former research scientist at the Boston University School of Medicine and the Massachusetts Institute of Technology, Dr. Sears has dedicated his research efforts over the past 30 years to the study of lipids. He has published more than 30 scientific articles and holds 13 U.S. patents in the areas of intravenous drug delivery systems and hormonal regulation for the treatment of cardiovascular disease. He has also written 13 books, including the New York Times #1 best-seller "The Zone". These books have sold more than 5 million copies in the U.S. and have been translated into 22 different languages. For more, go to zonediet.com
Просмотров: 3349 Dr. Barry Sears
Endocrine system- Hormones, hypothalamus, pituitary glands, thyroid gland, parathyroid gland
 
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There is brief description of some glands and their functions like hypothalamus, pituitary glands, pineal body, thyroid gland, parathyroid gland etc in this session.
Просмотров: 15685 Learners' Planet