After ovulation, the granulosa cells from the ovulated follicle differentiate into luteal cells. Steroid production by...

After ovulation, the granulosa cells from the ovulated follicle differentiate into luteal cells. Steroid production by granulosa cells in a developing follicle is different from those forming the corpus luteum because:

choose the correct answer

	secretion of hormones by the luteal cells has negative feedback effects on the hypothalamus and pituitary whereas secretion by the granulosa cells has only positive feedback effects.
	steroid hormone secretion by the granulosa cells mainly promotes the formation of secretory glands in the endometrium, whereas luteal cell secretions mainly promote endometrial proliferation.
	the luteal cells predominantly secrete estradiol, whereas the granulosa cells mainly secrete estriol.
	the granulosa cells have receptors for hCG (human chorionic gonadotropin), whereas luteal cells have no hCG receptors.
	the granulosa cells have only FSH receptors whereas the luteal cells contain receptors for both FSH and LH and are therefore able to synthesize more progesterone.

Solutions

Expert Solution

ANSWER IS OPTION B - steroid hormone secretion by the granulosa cells mainly promotes the formation of secretory glands in the endometrium, whereas luteal cell secretions mainly promote endometrial proliferation.

Granulosa cells form a single layer around the OOCYTE in the primordial ovarian follicle and advance to form a multilayered cumulus oophorus surrounding the OVUM in the Graafian follicle.

Estrogen levels rise and fall twice during the menstrual cycle. Estrogen levels rise during the mid-follicular phase and then drop precipitously after ovulation. This is followed by a secondary rise in estrogen levels during the mid-luteal phase with a decrease at the end of the menstrual cycle

The hormone estrogen is made by the ovaries. Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy.

Progesterone prepares the endometrium for the potential of pregnancy after ovulation. It triggers the lining to thicken to accept a fertilized egg. This causes the levels to remain elevated throughout the pregnancy, so the body does not produce more eggs

Sydney Mullin answered 1 year ago

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