Question

In: Biology

1.) The anterior pituitary secretes Select one or MORE: a. prolactin, a hormone involved in milk...

1.) The anterior pituitary secretes Select one or MORE:

a. prolactin, a hormone involved in milk production

b. FSH (follicle stimulating hormone)

c. LH (luteinizing hormone)

2.) Which of the following are TRUE about the menstrual cycle? Select one or MORE:

a. Rising estrogen levels during the follicular phase causes the endometrium lining to enlarge and, when high, stimulates the release of LH.

b. FSH acts on the endometrium to stimulate the shedding of the lining.

c. Every month about 100 ovarian follicles develop and become Graaffian follicles which produce progesterone.

d. Inhibin acts as negative feedback on the hypothalamus and pituitary, reducing FSH levels

e. Progesterone levels in the blood are highest during the luteal/secretory phase of the menstrual cycle.

d. estrogen

3.) Which of the following are true about the hypothalamic-pituitary-gonadal axis? Select one or MORE:

a. GnRH is produced by neurosecretory cells in the hypothalamus.

b. FSH and LH are produced in the anterior pituitary.

c. Oxytocin is produced in the anterior pituitary.

d. Sertoli cells produce Androgen Binding Protein (ABP) under the influence of FSH and testosterone.

e. The gonadostat in the hypothalamus contains the neurosecretory cells that control FSH and LH release.

4.) Which of the following are TRUE? Select one or MORE:

a. At the beginning of the menstrual cycle, FSH and LH stimulate development of tertiary ovarian follicles, which begin to produce estrogen.

b. Because of increased estrogen from the ovarian follicles, an LH surge occurs, triggering ovulation.

c. Mittleschmerz is the pain associated with spermatogenisis.

d. After ovulation, under the influence of LH, a new gland is formed from the follicle cells left behind in the ovary. It is called the corpus luteum.

e. The corpus luteum secretes progesterone and estrogen, preparing the endometrium for a potential pregnancy.

f. Increased levels of estrogen and progesterone inhibit FSH and LH secretion from the anterior pituitary.

Solutions

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