Which of the following statements concerning oogenesis is correct?
a. After menopause there are still many primary follicles in the ovary
b. Polar bodies are larger than the ovum
c. The second meiotic division occurs prior to fertilization
d. Just before ovulation, the primary oocyte completes its first meiotic division
e. The primary oocyte within a primary follicle is haploid cell.
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Question 2) Which of the following statements concerning spermatogenesis and oogenesis is incorrect?
a. One primary spermatocyte or one primary oocyte containing 46 chromosomes respectively yields two spermatozoa or two ova, each containing 23 chromosomes.
b. There is a continual supply of spermatogonia through mitotic activity.
c. The first meiotic division involved in oogenesis is completed just prior to ovulation.
d. It takes anywhere from about 11 to 50 years for the process of oogenesis to be completed.
e. During oogenesis, there is unequal distribution of cytoplasm resulting in the production of polar bodies that disintegrate.
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Question 3) One primary spermatocyte containing ____ chromosomes yields ____ spermatozoa containing ____ chromosomes, whereas one primary oocyte containing ____ chromosomes yields ____ ova (ovum) containing ____ chromosomes.
a. 46, 2, 23, 46, 2, 23
b. 46, 4, 23, 46, 1, 23
c. 46, 4, 23, 46, 4, 23
d. 23, 1, 23, 23, 1, 23
e. none of these answers.
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Question 4) Which layer of the uterus is shed each month with menstruation?
a. endometrium.
b. myometrium.
c. perimetrium.
d. mucous.
e. none of these answers.
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Question 5) During oogenesis,
a. thousands of primary oocytes are formed.
b. one primary oocyte yields 16 mature ova.
c. one primary oocyte yields 1 mature ovum.
d. each ovum contains 46 chromosomes at the time of ovulation.
e. sex hormones reach their lowest levels.
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Question 6) FSH is
a. an anterior pituitary hormone that stimulates antrum formation in developing ovarian follicles.
b. is secreted at the same rate throughout the ovarian cycle
c. is not important in male reproductive physiology
d. both (a) and (b)
e. none of the above
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Question 7) The number of primary oocytes in a female
a. is decreased continually throughout her reproductive life from puberty to menopause.
b. is maintained constant during her reproductive life because those that are lost are continuously replaced by an equal number of new primary oocytes.
c. increases at the time of menopause.
d. both (a) and (c) above.
e. both (b) and (c) above.
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Question 8) GnRH is secreted from the ____ and stimulates ____ secretion.
a. anterior pituitary, FSH
b. anterior pituitary, ADH
c. posterior pituitary, FSH
d. posterior pituitary, LH
e. testis, testosterone
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Question 9) Which of the following is the proper sequence of phases in the sexual response cycle?
a. plateau, excitement, orgasmic, resolution.
b. excitement, plateau, orgasmic, resolution.
c. plateau, orgasmic, excitement, resolution.
d. resolution, plateau, orgasmic, excitement.
e. excitement, orgasmic, resolution, plateau.
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Question 10) Which of the following is not a component of the overall ejaculatory response?
a. arterioles supplying the penis dilate, causing the erectile tissue to fill with blood and the penis to become erect.
b. the smooth muscles of the prostate, reproductive ducts, and seminal vesicles contract, resulting in emission.
c. the sphincter at the neck of the bladder tightly closes.
d. semen is expelled from the penis by a series of rapid contractions of skeletal muscles at the base of the penis.
e. rhythmical contractions and accompanying systemic responses are associated with a pleasant sensation known as orgasm.
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