In the human reproductive system,ovulation is triggered
A)at the end of the luteal phase.
B)by the surge in progesterone release.
C)by the surge in LH release.
D)at the beginning of the follicular phase.

Question

Quizplus · Accepted Answer

Ovulation is triggered by the surge in release of luteinizing hormone (LH) from the pituitary gland, which occurs in the middle of the menstrual cycle and marks the transition from the follicular phase to the luteal phase. Progesterone release is also important in preparing the uterus for implantation of a fertilized egg but it does not directly trigger ovulation. The end of the luteal phase is actually when menstruation occurs, so ovulation does not occur at this time. The beginning of the follicular phase is characterized by the development of ovarian follicles but ovulation does not occur until later in the cycle.

In the Human Reproductive System,ovulation Is Triggered