25.8-25.15 – Flashcards
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Which ovarian structure remains in a state of suspended animation until the individual reaches puberty?
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primary oocyte
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Which is the resulting event if fertilization does not occur?
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the corpus albicans is formed
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The granulosa cells of developing follicles secrete
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estrogens
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Which uterine structure provides much of the force needed to move a fetus out of the uterus and into the vagina?
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myometrium
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Which uterine region is the rounded portion of the body superior to the attachment of the uterine tubes?
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fundus
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The organ that provides mechanical protection and nutritional support for the developing embryo is the
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uterus
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The inferior portion of the uterus that projects into the vagina is the
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cervix
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Which region of the uterine tube captures the ovum?
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infundibulum
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Which is true regarding menses?
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it marks the beginning of the uterine cycle
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Which of the following descriptions best matches the term endometrium?
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consists of a basilar zone and a functional zone
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Throughout childhood, the vagina and vestibule are usually separated by which structure?
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hymen
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All of the following are true of the vagina, except that it holds spermatozoa prior to their passage to the uterus. serves as a passageway for the elimination of menstrual fluids. forms the lower portion of the birth canal. loses a portion of its lining during menses. receives the penis during coitus.
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loses a portion of the birth canal
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The vagina is
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a muscular tube extending between the uterus and the external genitalia
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The clitoris
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is derived from the same embryonic structures as the penis in males. engorges with blood during sexual arousal. is topped by a small erectile glans. contains erectile tissue comparable to the corpora cavernosa of the penis
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Another term for vulva is
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female external genitalia
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Near the nipple, each lactiferous duct enlarges, forming an expanded structure called a:
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lactiferous sinus
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Follicle-stimulating hormone
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stimulates spermatogenesis and stimulates maturation of primordial follicles in the ovary.
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After ovulation, the ovary secretes
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both estrogen and progesterone
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A mature follicle releases an ovum in response to a surge in
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luteinizing hormone
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Menstruation is triggered by a drop in the levels of
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progesterone
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The principal hormone secreted by the corpus luteum is
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progesterone
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Which is correct regarding surgical sterilization in males? In a vasectomy, each ductus deferens is cut and either a segment is removed (and the ends tied or cauterized) or silicone plugs are inserted. The failure rate is approximately 20 percent. Decreased sexual function in men typically occurs after vasectomy. Spermatozoa do not continue to develop after surgical sterilization is complete.
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in a vasectomy, each ductus deferens is cut and either a segment is removed (and the ends tied or cauterized) or silicone plugs are inserted.
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Choose the correct statement regarding testicular cancer. Screening with periodic PSA tests is recommended. Testicular cancer is the most common cancer among males aged 15-35. The combination of lower testosterone levels and the presence of estrogens probably stimulates testicular cancer. More than 95 percent of testicular cancers result from abnormal nurse cells, interstitial cells, or other testicular cells
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testicular cancer is the most common cancer among males aged 15-35.
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Ryan's stress and anxiety make it difficult for him to become sexually aroused, because those emotions
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Inhibit parasympathetic reflexes in his body
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Testosterone injections could lower Ryan's sperm count by
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inhibiting release of GnRH
