# Tiny gland, powerful control system 🦋🧠 #thyroidgland #thyroidhormones  #endocrinology  #meded

## Метаданные

- **Канал:** Armando Hasudungan
- **YouTube:** https://www.youtube.com/watch?v=-8VPeAihx5M

## Содержание

### [0:00](https://www.youtube.com/watch?v=-8VPeAihx5M) Segment 1 (00:00 - 00:00)

So what happens is that the hypothalamus secretes thyroid releasing hormone which causes the anterior pituitary gland to secrete thyroid stimulating hormone TSH. TSH thyroid stimulating hormone then causes the thyroid gland to produce the thyroid hormones T3 and T4 which then targets specific types of cells. Now there's a negative feedback here. Too much production of these hormones T3 and T4 will inhibit the hypothalamus to secrete more thyroid releasing hormone TR. So how does the thyroid stimulating hormone stimulate thyroid hormone production? Well, if we zoom in here, we see the membrane of the thyroid and a G-proin coupled receptor which gets activated once bound to thyroid stimulating hormone. GDP is exchanged for GTP which increases B essentially cellular cyclic AM levels which essentially increases the production of thyroid hormones. That's

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*Источник: https://ekstraktznaniy.ru/video/41560*