How Too Much Thyroid Hormone in the Blood Can Affect the Body
#hyperthyroid #GravesDisease #ThyroidHormoneMEDICAL ANIMATION TRANSCRIPT: The thyroid is the body's largest endocrine gland and is located anterior and lateral to the trachea and inferior to the larynx. One of the functions of the thyroid is to secrete thyroid hormone, which increases metabolic rate by increasing respiratory rate, increasing heart rate, accelerating breakdown of food for fuel, and increasing heat production. The thyroid hormone interacts with the hypothalamus and pituitary gland in a negative feedback loop to affect metabolic rate. Low levels of thyroid hormone in the blood cause the hypothalamus to release thyrotropin-releasing hormone. Thyrotropin-releasing hormone stimulates the anterior pituitary to release thyroid-stimulating hormone. Thyroid-stimulating hormone stimulates the thyroid gland to secrete thyroid hormones triiodothyronine or T3, and thyroxine or T4, into the bloodstream to affect cells throughout the body. The elevated levels of thyroxine in the blood are detected by the hypothalamus, which stops production of thyrotropin-releasing hormone. This negative feedback loop keeps the metabolic rate from increasing too much. Hyperthyroidism is a condition in which there is a chronic high level of thyroid hormone present in the blood. The most common cause is Grave's disease, an idiopathic autoimmune disorder. In this condition, B cells in the thyroid mistakenly produce thyroid-stimulating immunoglobulins, which mimic the effect of thyroid-stimulating hormone and bind to the same receptor. As a result, binding these immunoglobulins stimulates the thyroid gland to continue producing thyroid hormone, which causes chronic manifestations of increased respiration, increased heart rate called tachycardia, and increased heat production. In addition, the thyroid gland increases in size, resulting in a condition called thyroid hypertrophy or a goiter. Three common treatments of hyperthyroidism reduce circulating thyroid hormone. Antithyroid drugs, such as propylthiouracil and methimazole, suppress the synthesis of thyroid hormone. Surgical removal of thyroid tissue can reduce the amount of secreted thyroid hormone. Oral ingestion of radioactive iodine destroys thyroid tissue, resulting in decreased secretion of thyroid hormone.ANM11033
Sign up to download this and other animations for free to use in your educational, non-commercial project: https://nmal.nucleusmedicalmedia.com/free-medical-images-animations-nmal-landing.php
Visit our website to learn more about using Nucleus content for patient engagement and content marketing: http://www.nucleushealth.com/ Receive SMS online on sms24.me
TubeReader video aggregator is a website that collects and organizes online videos from the YouTube source. Video aggregation is done for different purposes, and TubeReader take different approaches to achieve their purpose.
Our try to collect videos of high quality or interest for visitors to view; the collection may be made by editors or may be based on community votes.
Another method is to base the collection on those videos most viewed, either at the aggregator site or at various popular video hosting sites.
TubeReader site exists to allow users to collect their own sets of videos, for personal use as well as for browsing and viewing by others; TubeReader can develop online communities around video sharing.
Our site allow users to create a personalized video playlist, for personal use as well as for browsing and viewing by others.
@YouTubeReaderBot allows you to subscribe to Youtube channels.
By using @YouTubeReaderBot Bot you agree with YouTube Terms of Service.
Use the @YouTubeReaderBot telegram bot to be the first to be notified when new videos are released on your favorite channels.
Look for new videos or channels and share them with your friends.
You can start using our bot from this video, subscribe now to How Too Much Thyroid Hormone in the Blood Can Affect the Body
What is YouTube?
YouTube is a free video sharing website that makes it easy to watch online videos. You can even create and upload your own videos to share with others. Originally created in 2005, YouTube is now one of the most popular sites on the Web, with visitors watching around 6 billion hours of video every month.
