Asked by Killer GloUp on Sep 24, 2024
Verified
Which of the following is not true of the hormone TSH?
A) It is synthesized by the anterior pituitary gland.
B) Its target is the thyroid gland.
C) It stimulates the release of thyroid hormones.
D) Due to negative feedback, a low level of thyroid hormones will inhibit the release of TSH.
E) All of these are true of the hormone TSH.
TSH
Thyroid Stimulating Hormone, a pituitary hormone that regulates the production of hormones by the thyroid gland.
Anterior Pituitary Gland
A major gland of the endocrine system located at the base of the brain, responsible for producing and releasing hormones that regulate various bodily functions.
Thyroid Hormones
Chemical substances produced by the thyroid gland, such as thyroxine (T4) and triiodothyronine (T3), which regulate metabolism, energy generation, and growth and development.
- Identify key endocrine glands and their hormones.
- Explain the procedure and oversight of hormone secretion.
Verified Answer
WW
Wonder woman3 days ago
Final Answer :
D
Explanation :
TSH (Thyroid Stimulating Hormone) is actually stimulated, not inhibited, by low levels of thyroid hormones due to negative feedback. When thyroid hormone levels are low, the hypothalamus releases TRH (Thyrotropin-Releasing Hormone), which then stimulates the anterior pituitary gland to release TSH. TSH then stimulates the thyroid gland to produce more thyroid hormones, thereby increasing their levels in the blood.
Learning Objectives
- Identify key endocrine glands and their hormones.
- Explain the procedure and oversight of hormone secretion.