Thyroid Gland, Hormones and Thyroid Problems, Animation
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- Опубліковано 7 лют 2025
- (USMLE topics, endocrinology) Regulation of thyroid hormone, hyper- and hypothyroidism: causes, symptoms and treatment, goiter.
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Voice by: Sue Stern
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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.
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i was really excited to watch this cause i know alila medical media never dissapoints!!! this is a remarkable channel i've come across while taking my physiology class! Thanks Alila Medical!
I love these animations. They are concise and short, and the graphics really help drive home the information.
In a short video, you have explained very well. Love from Pakistan.
YOU EXPLAINED THIS BEAUTIFULLY! THE EXPLANATION AS TREMENDOUSLY HELPFUL, THANK YOU!!!
In my final year rn,ngl never ever got to understood this mechanism cause I couldn't process and imagine it,but now I can!!thank you so much!!
Helped me a ton!!
The thyroid gland is a vital hormone gland: It plays a major role in the metabolism, growth and development of the human body. It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream
Yeah unfortunately I wish we didn’t got it
I have hyperthyroidism😫 I have been taking methimazole for the last 10 months. My T4 and T3 are normal, but my TSH is .ooo😔 I’m not sure why
Such a great video, short and to the point. Thanks a lot, I used it as a study tool for my upcoming physiology final.
omg! my prof teached this topic for 1 hour.. but you have brilliant explanation.. it made me easy to understand... thanks much
This was great, I been tryin to find out about "signs that your thyroid is not working properly" for a while now, and I think this has helped. Have you ever come across - Yannabarn Vanish Thyroid - (search on google ) ? Ive heard some awesome things about it and my work buddy got amazing results with it.
Thanks
@@huyanhbui7105 bblvsp
@@huyanhbui7105 .,
I am diagnosed Hypothyroidism last two weeks
Are you fine not
This video is perfect! And it talks about the Patho disorders we learned in class!
This is really helpful, I have an exam due tomorrow
Very helpful, thank you
Whoaw this is really helpful
Thank you
I needed this video. I've recently had an ultrasound on my thyroid and now I need to see Endocrinologist. Not sure what's going on. Graves Disease was in some of the language in my portal charts. I have not seen my doctor yet, so I'm a bit nervous. I am glad I have the diagnosis so I can be treated. Great video.
What happened? I just got diagnosed my levels are 17
Thank's 🌷🌷🌷
Sooo easyly clearly explained
I was diagnosed with hyperthyroidism which leads to thyrotoxic heart disease i accumulated most of the symptoms like hair loss for over the years and before i suffer so much from palpitation at 155 hbm i got 4 to 5 times bowel movement it also leads to anxiety sweating
There is nothing God cannot do, take your medications with a dose of biblical declarations and watch God change things. Wishing you a quick recovery.
@@idealsyntheticmarchant8670 Amen
How long it has been to you before you knew it?
It comes from anxiety
Why doesn’t god cure all those devout Christians with terminal diseases? If they truly believe, why are they not cured?
Very very useful vedio
Salute to you for your comprehensive explanation!!
Thankss
More thanks to Alila medical media, so amazing lecture.
Thank you for giving practical knowledge ❤️
Good lesson,need more knowledge about these messages
Thank you very much. It had all I needed
Understanding vdo 👏
WOW 😲
THANK YOU 🐦 FOR THE MEDICAL INFORMATION
i saw this video for my biology test of animal hormones class 10
it helped me quite a lot
Very good
Thank you, easy to understand and straight to the point
Thank you so much ❤️😘
Basicly, me not breathing well resaulted in overproduction of T. Hormons. Cause is lack of oxygen. Wow this video is seriously educative! Thank you.
Thank u so much I gate enough knowledge from this video
thank u
Very well explained 💯👍🏻
I am thankful for this video.. thanks for this video and awesome.....❤❤❤❤
short but powerful and clear message thanks so much
Glad it was helpful!
Thank you for the infos
Great content...... Actually I have been watching all of your content..
And valuable stuff has been served by ALILA MEDICAL MEDIA which is appreciable...
Thanks... Go ahead... I'm with you.. 😊😊
Thank you a lot for the support of this video, I'm a seeking of T4 . Please more direction for diaggosting my self
A spiffing and superlative video with an apposite contents. 👍
Fantastic video as always, thank you!
thanks for your help
Thank you so much too short but more informative
well explained ...love it
Feeling lucky to find this channel in youtube.
This was great, I been tryin to find out about "signs that your thyroid is not working properly" for a while now, and I think this has helped. Have you ever come across - Yannabarn Vanish Thyroid - (search on google ) ? Ive heard some awesome things about it and my work buddy got amazing results with it.
Cheers for this, I've been looking for "ultra thyroid solution free" for a while now, and I think this has helped. Have you heard people talk about - Yannabarn Vanish Thyroid - (should be on google have a look ) ? Ive heard some unbelievable things about it and my mate got cool results with it.
Many thanks, I've been looking for "solution for hair fall due to thyroid" for a while now, and I think this has helped. Have you heard people talk about - Yannabarn Vanish Thyroid - (do a google search ) ? Ive heard some extraordinary things about it and my mate got cool success with it.
How to reduce thise prblm plz tell me...
Best video I have seen in regards to thyroid. Thanks a lot!
Thankyou
The thyroid secretes several hormones, collectively called thyroid hormones. The main hormone is thyroxine, also called T4. Thyroid hormones act throughout the body, influencing metabolism, growth and development, and body temperature. During infancy and childhood, adequate thyroid hormone is crucial for brain development.
Thank you for the great and quickest way of making some one understand very well
awesome mind blowing
....
I'm so happy I looked at this . Everybody just think I'm crazy .
Me too 😞
I struggled with a goiter for many years. I don't do medication so I tried everything natural I could to get rid of it but nothing worked. I started taking new products about 6 months ago and I am happy to say it gone!!!!
@@DrRichardhome May I ask what are the products you take now and are happy with?
@@DrRichardhome what are product you gona do ?
I am hypo thyridism
Sometime. I feel much stress so feel headache very badly
So what should I do when i get headache help me plz.
Very good👍👍
Excellent presentation
salma . just for your info hyper means more and hypo means less, in other conditions as well.
thnks
Thanks for explaining this
I think half of the people watching this are med students studying this and the other half is people who have one of these conditions. I’m part of the latter
Or your crush have these conditions and you're trying to understand it
@@bnoru1291 wtf
You are too powerful 🙏🙏💕💯
Best explanation
Please tell how a medecine for hormone thyroid
It was helpful will like to watch videos on organs in the endocrine systems each organ and it cells and relating diseases
Perfect tissue dance for sharing this information
Very muchUnderstanding video jazak Allhu khayran
its such e nice discussion. as e patient of thyriod,all of thess topics are matched with me.
I hav this awful diease along w other problems😭💜💜💜🙏
🙏🙏🙏
I'm so sorry to hear that. Bless you. 💕
Ml
I have that problem plz tell me how can i get solution
@@tariqjani7836 Go to the doctor as soon as possible. Get the medication and you will be fine. If you don't have the resources to go to the doctor, search on Google and buy the recommended medicine. Good luck.
Thank you very much for the info
Amazing video!
Nice Mam..
Thanks.
What an explaination mam really really awesome thank you
Thank you so much
Please help me a little bit, give me some advice like my hyper thyroid, what medicine can i take for hyper thyroid and what can be taken as supplement.
I want to know about gestational trophoblastic disease. Can you please make a video for it...
Short video but best cre fr hlth
No, thank you for explaining
Love this video
Thank you for the very informative video. May I suggest to add videos about the best food to eat and avoid for people with Hypothyroidism
How to diagnose infectious disease whether any infection is present in the body or any tumor present? Symptoms: Severe Dryness, Dehydrated body all times.
Well explained, thank you.
Thank you! The video is helping me to study for A&P 2.
Thank you so much for the good , educative content ... refreshing my knowledge from medical school ....
I humbly suggest you do a content of gynecomastia
Thank u.....it was really helpful
I have treated by thyroid (hypothyroidism) completely just by doing simply yoga n exercise
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Hey can you tell some tips to controll it basically I'm feeling anxiety problems and overcoming and again feeling may be due toy thyroid . Im really scaring of what will be going
Succinct and informative. Well done.
Thanq Alila medical... Helped a lot
Thanks
Please make a video on blood supply of total body...
Excellent 👌
I am teacher and i like it very much
Well done
Thanks for a superb video like this it helps me a lot to learn more relevant terms
simple and useful, thank you so much
Im studying biology about thyroid gland and this video help me much. Thank u
Kad izucavate to, molim vas koja hrana utice da se smanji TSH. ? HVALA
Excellent video seldom come Accross such a clear explanation 🙌very good / from someone living 30 years 😢with a radiated thyroid ( don’t don’t ever go this !!!!!!!
What's the treatment for this?
I was diagnosed with hypothyroidism and was prescribed thyroxine. I'm supposed to go pick up the meds ASAP. I haven't been able to talk to my doctor about it yet. So I'm here trying to learn about it a bit.
Thank you 😇
Thx so much
What to do for hypothyroidism
thanks for sharing god bless
Hello , tnx for the information. I think I hav a goiter. The Dr says it is ok. Is it ok to live with it or should I remove it?
Whats the difference between thyroid hormones and thyroid broblem ??