Negative feedback inhibition occurs when
a. thyroxine stimulates the anterior pituitary.
b. TRH stimulates the thyroid gland.
c. TSH stimulates the thyroid gland.
d. TRH stimulates the anterior pituitary.
e. TRH causes the anterior pituitary to release TSH.
Answer: a. thyroxine stimulates the anterior pituitary.
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