Which hormone level is associated with the menstrual cycle and rises before ovulation?

Master Health Science I with our Anatomy, Physiology, and Medical Conditions Test. Use our quizzes and comprehensive explanations to ace your exam!

Multiple Choice

Which hormone level is associated with the menstrual cycle and rises before ovulation?

Explanation:
The key idea is how ovarian hormones fluctuate to time ovulation. Estrogen, mainly in the form of estradiol, rises during the follicular phase as developing follicles grow. This pre-ovulatory rise promotes endometrial proliferation and, when it reaches a high level, provides positive feedback on the pituitary to trigger the LH surge. That LH surge then drives ovulation and the start of the luteal phase. Progesterone actually rises after ovulation, not before; FSH rises early to recruit follicles but does not peak right before ovulation like estrogen does. So the hormone that increases leading up to ovulation is estrogen.

The key idea is how ovarian hormones fluctuate to time ovulation. Estrogen, mainly in the form of estradiol, rises during the follicular phase as developing follicles grow. This pre-ovulatory rise promotes endometrial proliferation and, when it reaches a high level, provides positive feedback on the pituitary to trigger the LH surge. That LH surge then drives ovulation and the start of the luteal phase. Progesterone actually rises after ovulation, not before; FSH rises early to recruit follicles but does not peak right before ovulation like estrogen does. So the hormone that increases leading up to ovulation is estrogen.

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