Ovulation is triggered primarily by
A) a surge of LH that occurs halfway through the menstrual cycle.
B) the falling levels of estrogen and progesterone.
C) the rising levels of progesterone.
D) both a surge of LH that occurs halfway through the menstrual cycle and the rising levels of progesterone.
E) progressively higher levels of human chorionic gonadotropin.

Question

Quizplus · Accepted Answer

Ovulation is primarily triggered by a surge in luteinizing hormone (LH) that occurs around the middle of the menstrual cycle.

Ovulation Is Triggered Primarily by