The inhibition of TRH secretion by an increased blood concentration of thyroid hormones is an example of
A) positive feedback
B) negative feedback
C) accentuation
D) sensitization

Question

Quizplus · Accepted Answer

The inhibition of TRH secretion by an increased blood concentration of thyroid hormones is an example of negative feedback. Negative feedback is a regulatory mechanism where the output of a system inhibits or decreases the activity of the system. In this case, the increased level of thyroid hormones inhibits the release of TRH, which in turn decreases the secretion of thyroid hormones.

The Inhibition of TRH Secretion by an Increased Blood Concentration