During the menstrual cycle,ovulation is directly caused by:
A) the gradual decrease in estrogen levels.
B) the sudden increase of luteinizing hormone (LH).
C) the sharp rise in progesterone.
D) both B and C

Question

Quizplus · Accepted Answer

Ovulation is directly caused by the sudden increase of luteinizing hormone (LH). This surge in LH triggers the release of an egg from the ovary. Progesterone levels rise after ovulation to prepare the uterus for possible pregnancy. Estrogen levels also fluctuate throughout the menstrual cycle but do not directly cause ovulation.

During the Menstrual Cycle,ovulation Is Directly Caused By