Dopamine, acting as a prolactin-inhibiting factor, inhibits the release of which hormone?

Prepare for the Clinical Chemistry Numericals Test. Study with comprehensive questions, each with detailed explanations. Boost your confidence and excel on your exam!

Multiple Choice

Dopamine, acting as a prolactin-inhibiting factor, inhibits the release of which hormone?

Explanation:
Dopamine acts as a prolactin-inhibiting factor from the hypothalamus and tonically suppresses prolactin release from anterior pituitary lactotrophs via D2 receptors. This keeps prolactin levels low most of the time, and when dopamine’s effect is reduced, prolactin rises. The other hormones listed—growth hormone, TSH, and FSH—are controlled mainly by different hypothalamic factors (GHRH/somatostatin, TRH, and GnRH with their own feedback), not by dopamine’s inhibitory action. So the hormone inhibited by dopamine in this context is prolactin.

Dopamine acts as a prolactin-inhibiting factor from the hypothalamus and tonically suppresses prolactin release from anterior pituitary lactotrophs via D2 receptors. This keeps prolactin levels low most of the time, and when dopamine’s effect is reduced, prolactin rises. The other hormones listed—growth hormone, TSH, and FSH—are controlled mainly by different hypothalamic factors (GHRH/somatostatin, TRH, and GnRH with their own feedback), not by dopamine’s inhibitory action. So the hormone inhibited by dopamine in this context is prolactin.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy