reproductive quiz exam 5

During the follicular phase of the ovarian cycle: progesterone levels rise and estrogen levels fall. the combination of GnRH and elevated estrogen levels stimulates LH secretion. the follicular phase ends when FSH stimulates some secondary follicles to develop into tertiary follicles. developing follicles secrete estradiol.

developing follicles secrete estradiol

Which region is the rounded portion of the uterine body superior to the attachment of the uterine tubes? isthmus cervix fundus cervical canal

fundus

Gardasil is a vaccine against ______, which is responsible for 75 percent of cervical cancers. fibrocystic disease human papillomavirus AIDS pelvic inflammatory disease

human papillomavirus

Throughout childhood, the vagina and vestibule are usually separated by which structure? fornix hymen mons pubis rugae

hymen

Which structure surrounds the tip of the penis, attaches to the relatively narrow neck of the penis, and continues over the glans? corpora cavernosa root bulbocavernosus muscle prepuce

prepuce

Which ovarian structure remains in a state of suspended development until the individual reaches puberty? secondary oocyte primary oocyte oogonia polar body

primary oocyte

During the luteal phase of the ovarian cycle, __________. the combination of GnRH and elevated estrogen levels inhibits LH secretion FSH levels decline due to the negative feedback effects of inhibin a precipitous decrease in LH level triggers the completion of meiosis I by the primary oocyte progesterone secretion by the corpus luteum stimulates endometrial growth and secretion

progesterone secretion by the corpus luteum stimulates endometrial growth and secretion

The bulbo-urethral glands: produce 20-30 percent of the volume of semen. contribute about 60 percent of the volume of semen. encircle the proximal portion of the urethra. secrete a thick, alkaline mucus that helps neutralize any urinary acids.

secrete a thick, alkaline mucus that helps neutralize any urinary acids

Within which structure does sperm production occur? seminiferous tubule rete testis spermatic cord efferent ductule

seminiferous tubule

In which process does a spermatozoon lose its attachment to the nurse cell? synapsis spermiogenesis spermiation spermatogenesis

spermiation

Choose the correct statement regarding testicular cancer. The 5-year survival rate for localized testicular cancer is 99%. The average age at the time of diagnosis is 18 years. Screening with periodic PSA tests is recommended. More than 95 percent of testicular cancers result from abnormal nurse cells.

the 5-year survival rate for localized testicular cancer is 99 %

Which is the resulting event if fertilization does not occur? The corpus albicans is formed. The tertiary follicle initially collapses and under LH stimulation, forms the corpus luteum. A layer of thecal cells forms around the follicle. The tertiary follicle releases the secondary oocyte with its protective outer covering, the corona radiata, into the pelvic cavity.

the corpus albicans is formed

Which structure is associated with the formation of primary follicles? zona pellucida corona radiata antrum corpus luteum

zona pellucida

Within spaces between the seminiferous tubules, the interstitial endocrine cells __________. promote spermatogenesis and spermiogenesis under FSH stimulation are involved in the hormonal regulation of spermatogenesis are attached to the tubular capsule are responsible for the production of androgens

are responsible for the production of androgens

Which structure is an extensive mesentery that attaches to the sides and floor of the pelvic cavity? suspensory ligament broad ligament ovarian ligament mesovarium

broad ligament

Which male accessory organ functions as the site of sperm maturation? epididymis ductus deferens urethra prostate gland

epididymis

Which male reproductive structure is the start of the male reproductive tract in which spermatozoa exist in a sheltered environment that is precisely regulated by the surrounding epithelial cells? ampulla ductus deferens ejaculatory duct epididymis

epididymis

Which statement 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 extremely high. Decreased sexual function in men typically occurs after vasectomy. Spermatozoa do not continue to develop after surgical sterilization is complete.

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

Ryan's stress and anxiety make it difficult for him to become sexually aroused, because those emotions Stimulate the bulbo-urethral glands Prevent contractions in the ischiocavernosus and bulbocavernosus muscles Result in the release of nitric oxide around penile arteries Inhibit parasympathetic reflexes in his body

inhibit parasympathetic reflexes in his body

Testosterone injections could lower Ryan's sperm count by Stimulating release of FSH Inhibiting release of LH Stimulating release of Inhibin Inhibiting release of GnRH

inhibiting release of GnRH

Which birth control method may utilize copper ions to inhibit sperm motility? oral contraceptives diaphragm prophylactics intrauterine device (IUD)

intrauterine device (IUD)

The recto-uterine pouch: sits inferior to the ovary, usually angled forward above the urinary bladder. is formed between the posterior wall of the uterus and the anterior surface of the colon. is an expanded funnel that is open to the pelvic cavity along the medial surface of the ovary. is the pocket formed between the uterus and the posterior wall of the urinary bladder.

is formed between the posterior wall of the uterus and the anterior surface of the colon

Part complete Which statement is true about the emission phase in male sexual activity? It stimulates the bulbo-urethral glands. It begins with peristaltic contractions in the ampullae of the ductus deferens. Emission is controlled by somatic motor neurons in the lower lumbar and upper sacral segments of the spinal cord. Emission is due to parasympathetic activation.

it begins with peristaltic contractions in the ampullae of the ductus deferens

Which is true regarding menses? It marks the beginning of the uterine cycle. The uterine glands enlarge, accelerating their rates of secretion. There is a degeneration of the basilar zone and the deepest uterine glands. It begins at the time of ovulation and persists as long as the corpus luteum remains intact.

it marks the beginning of the uterine cycle

Near the nipple, each lactiferous duct enlarges, forming an expanded structure called a: lactiferous sinus. secretory alveoli. pectoral fat pad. lobule

lactiferous sinus

Choose the correct event that occurs during the development of the testes. At three months of development, the connective tissue bands elongate as the fetus grows. Late in fetal development, each testis is pulled through the abdominal musculature into the scrotum. At three months of development, the relative position of the testes does not change. At two months of development, the testes form inside the scrotal sac.

late in fetal development, each testis is pulled through the abdominal musculature into the scrotum

Which stage of spermatogenesis yields four immature (undifferentiated) haploid cells? mitosis of spermatogonium meiosis II spermiogenesis meiosis I

meiosis II

Which uterine structure provides much of the force needed to move a fetus out of the uterus and into the vagina? cervical canal perimetrium endometrium myometrium

myometrium

Which regional structure of a sperm contains both centrioles of the original spermatid? head neck acrosomal cap middle piece

neck

Regarding the proliferative phase of the uterine cycle: the uterine glands are manufacturing a glycogen-rich mucus that can be metabolized by an early embryo. it is caused by constriction of the spiral arteries, which reduces endometrial blood flow. restoration is inhibited by estrogens. it begins at the time of ovulation and persists as long as the corpus luteum remains intact.

the uterine glands are manufacturing a glycogen-rich mucus that can be metabolized by an early embryo

Which structure is continuous with the septa that subdivide the interior of the testis into separate lobules? cremaster muscle tunica albuginea dartos muscle seminiferous tubule

tunica albuginea