43. Endocrine System
Endocrine System
Multiple Choice
Multiple ChoiceHow is the level of thyroxine in the blood regulated?
A
Thyroxine stimulates the pituitary to secrete thyroid-stimulating hormone (TSH).
B
TSH inhibits the secretion of thyroxine from the thyroid gland.
C
TSH-releasing hormone (TRH) inhibits the secretion of thyroxine by the thyroid gland.
D
Thyroxine stimulates the hypothalamus to secrete TRH.
E
High levels of T3 and T4 inhibit the secretion of TRH and TSH.
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