Thyroid Gland, Hormones and Thyroid Problems, Animation
ฝัง
- เผยแพร่เมื่อ 25 ก.ย. 2017
- (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 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!!
YOU EXPLAINED THIS BEAUTIFULLY! THE EXPLANATION AS TREMENDOUSLY HELPFUL, THANK YOU!!!
This video is perfect! And it talks about the Patho disorders we learned in class!
Thank you, easy to understand and straight to the point
Such a great video, short and to the point. Thanks a lot, I used it as a study tool for my upcoming physiology final.
Best video I have seen in regards to thyroid. Thanks a lot!
Thank you for giving practical knowledge ❤️
Thank you very much. It had all I needed
Fantastic video as always, thank you!
Salute to you for your comprehensive explanation!!
I am diagnosed Hypothyroidism last two weeks
Well explained, thank you.
good video, very concise with no unnecessary detail
Thank you! The video is helping me to study for A&P 2.
Thank you for the great and quickest way of making some one understand very well
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.
In a short video, you have explained very well. Love from Pakistan.
Thank you ❤️ for sharing this information.
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
Very helpful, thank you
Absolutely amazing!! Thank you so much.
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
I used to take prescribed medication for my thyroid malfunction one month in November 2009, because i always have a good metabolism and good appetite from my childhood until now, but unsure which kind of thyroid problems I used to have, or still having it or not. But I knew I have been experiencing my post menaupose stage, also part of hormones related problems as well as my untreated unstable unmanageable changeable blood glucose worsening problem and aggressively affecting my short sighted eyes as cataracts also due to aging plus I am having my unprofessional ivf made abdominal abnormal pregnancy with my very very slow growing far undersized abnormal unborn baby, also may cause my hormones fluctuated as a grumpy nasty person with drowsy unworkable head. Hopefully I can get over this problem sooner
More thanks to Alila medical media, so amazing lecture.
Thank you so much
thank you so much! this is excellent
Love this video
Thank you so much for the good , educative content ... refreshing my knowledge from medical school ....
I humbly suggest you do a content of gynecomastia
Could you create a video about pulmonary edema ? Thanks in advance !
its a super video which was useful for my pharmacology exam in B.pharm.
please do some videos in antibiotics too.
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.
its such e nice discussion. as e patient of thyriod,all of thess topics are matched with me.
Whoaw this is really helpful
I want to know about gestational trophoblastic disease. Can you please make a video for it...
Very muchUnderstanding video jazak Allhu khayran
Understanding vdo 👏
Succinct and informative. Well done.
Thank a lot ,it’s very helpful 😍😍😍😍
Thank you very much for the info
Thank u.....it was really helpful
Good lesson,need more knowledge about these messages
WOW 😲
THANK YOU 🐦 FOR THE MEDICAL INFORMATION
A spiffing and superlative video with an apposite contents. 👍
V nicely expained 🌴 TKS 🙏
Thanks for explaining this
Sooo easyly clearly explained
Thank you so much too short but more informative
Thank you so much ❤️😘
awesome mind blowing
....
Thanks for a superb video like this it helps me a lot to learn more relevant terms
thanks for your help
Thank you for the infos
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?
How to diagnose infectious disease whether any infection is present in the body or any tumor present? Symptoms: Severe Dryness, Dehydrated body all times.
Best explanation
Amazing video!
Thank you
Thank u so much for sharing 👌😍
I had a problem with the thyroiditis on my own and it was a problem for me and I had to have biopsy to the doctor to get it done so I can be sure to make it to the first time in a bad situation where it was a problem.
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
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Thx need to know about the correct TSHvalue of the considered condition as hypothyroidism, is it 5 Or is it 5.4?
short but powerful and clear message thanks so much
Glad it was helpful!
Very very useful vedio
Thank you for the clear and concise explanation of the thyroid gland and common diseases of over and under production of thyroid glands.
Thanq Alila medical... Helped a lot
It was helpful will like to watch videos on organs in the endocrine systems each organ and it cells and relating diseases
This is really helpful, I have an exam due tomorrow
Very good
Thx so much
simple and useful, thank you so much
Cool ....I enjoy it.
Basicly, me not breathing well resaulted in overproduction of T. Hormons. Cause is lack of oxygen. Wow this video is seriously educative! Thank you.
Please tell how a medecine for hormone thyroid
Do u have any info/experience with thyroblastoma ? Something relatively new for the cancer world n searching for any feedback.
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?
Thank's 🌷🌷🌷
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
thanks for sharing god bless
I am so glad to watch this video ...i subscribed. Feeling happy ...
do you have a video on hormonal imbalance that causes acne?
This is so helpful,can you kindly take me through Diabetes mellitus
Such a great vedio👍😘😎✨👌🙂
I would to see your video on the function and dysfunction of the spleen. Thank you.
Thank you 😇
Thankss
Gud day Mam, my report shows T3, T4, FT3 & FT4 within normal range but TSH is high ( 11.18). What could be the reason and how can I correct it. Do pls reply Mam
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
Nice Mam..
Thanks.
Very good👍👍
Short video but best cre fr hlth
Thank you...
Thanks
You are too powerful 🙏🙏💕💯
Need help..can you share some herbal med for hyperthyroidism
Excellent presentation
Good information
thank u