The feedback loop involving luteinizing hormone and estrogen is terminated by
A) ovulation, which directly inhibits luteinizing hormone secretion.
B) pregnancy.
C) birth.
D) ovulation, which decreases estrogen secretion.
E) nothing; the cycle cannot be terminated.

Question

Quizplus · Accepted Answer

Ovulation leads to a decrease in estrogen secretion, which in turn reduces the stimulation of luteinizing hormone (LH) secretion, thus terminating the feedback loop.

The Feedback Loop Involving Luteinizing Hormone and Estrogen Is Terminated