Chapter 57: Thyroid Gland- Physiology Flashcards
1
Q
What is TRH?
A
Thyrotropin-Releasing Hormone released from the hypothalamus; causes release of TSH
2
Q
What is TSH?
A
Thyroid-Stimulating Hormone released by the anterior pituitary; causes release of thyroid hormone from the thyroid
3
Q
What are the thyroid hormones?
A
T3 (more active)
T4
4
Q
What is Synthroid® (levothyroxine): T3 or T4?
A
T4
5
Q
What is the half-life of Synthroid® (levothyroxine)?
A
7 days
6
Q
What do parafollicular cells secrete?
A
Calcitonin
