Mastering A & P Chapter 28

Which of the following structures is NOT part of the male reproductive tract? ureter membranous urethra ductus deferens ejaculatory duct

The paired erectile bodies in the penis are the corpus spongiosum. corpora cavernosa. prepuce. penile urethra. membranous urethra.

The delicate layer of serous membrane that covers the testis is called the dartos. median raphe. tunica vaginalis. lamina propria. tunica albuginea.

The portion of the urethra that passes through a column of erectile tissue to the external urethral meatus is the spongy urethra. membranous urethra. corpus spongiosum. vascular urethra. penile urethra.

The portion of the urethra that passes through the pelvic cavity floor is called the penile urethra. ureter. bulbourethral. prostatic urethra. membranous urethra.

The urethral meatus is an opening in the corpus cavernosum. corona radiata. prepuce. glans penis. corpus spongiosum.

The dense layer of connective tissue that surrounds the testis is called the dartos. tunica albuginea. epididymis. median raphe. spermatic cord.

The small paired structures at the base of the penis that secrete a thick, alkaline mucus are the prostate glands. preputial glands. Bartholin glands. bulbo-urethral glands. seminal vesicles.

The fold of skin that covers the glans penis is the corpus cavernosum. penile urethra. ejaculatory duct. corpus spongiosum. prepuce.

The surgical removal of the prepuce is called pupectomy. tubectomy. orchidectomy. vasectomy. circumcision.

The term ________ means the failure of one or both testes to descend into the scrotum by the time of birth. premature puberty vasculitis cryptorchidism priapism orchitis

Contraction of the dartos muscle moves sperm through the ductus deferens. propels sperm through the urethra. produces an erection. tightens the scrotal sac. initiates seminal emission.

Contraction of the cremaster muscles tenses the scrotal sac and pulls the testes closer to the body cavity. pulls the testes closer to the body cavity. moves sperm through the ductus deferens. tenses the scrotal sac. propels sperm through the urethra.

The cremaster muscle can raise and lower the testes to regulate erection. temperature. size. pH. expansion.

Functions of the accessory glands of the male reproductive system include all of the following except meeting the nutrient needs of spermatozoa for motility. activating the spermatozoa. production of spermatozoa. producing buffers. propelling spermatozoa and fluids along the reproductive tract.

Spermatids mature into spermatozoa by the process of cytokinesis. spermiogenesis. meiosis II. meiosis I. spermatogenesis.

During meiosis I, maternal and paternal chromosomes come together during the process called ________ to form a ________. synapsis; spermatid synapsis; chromatid synapsis; tetrad metaphase II; tetrad prophase I; chromatid

Crossing over occurs during ________ of meiosis ________. interphase; I interphase; II metaphase; I prophase; II prophase; I

The first haploid cell formed during spermatogenesis is the __________. spermatid spermatogonia secondary spermatocyte primary spermatocyte

If the prostate stopped secreting fluid, this would result in semen that lacked sperm. with no mucus. that was rich in prostaglandins. with less fructose. with a higher than normal pH.

The process of spermiogenesis produces primary spermatocytes. spermatozoa. spermatogonia. secondary spermatocytes. spermatids.

Where in the male reproductive system would you expect to find the most mature spermatozoa? in the head of the epididymis in the seminiferous tubules in the ductus deferens and ejaculatory duct in the seminal gland in the prostate gland

The nurse cells of the seminiferous tubules do all of the following except secrete androgen-binding protein. maintain the blood-testis barrier. secrete testosterone. secrete inhibin. support spermiogenesis.

Semen contains all of the following except spermatozoa. seminal fluid. spermatogonia. fibrinogen. prostaglandins.

Secondary spermatocytes each contain 23 chromosomes. 46 pairs of chromosomes. twice the diploid number of chromosomes. 23 pairs of chromosomes. 46 chromosomes.

The spermatic cord is the external marking of the boundary between the two chambers of the scrotum. a dense layer of connective tissue that surrounds the testis. a layer of smooth muscle in the skin of the scrotal sac. a bundle of tissue that contains the ductus deferens, blood vessels, nerves, and lymphatics that serve the testis. a narrow opening that links the scrotal chamber with the peritoneal cavity.

The organ that surrounds the urethra and produces an alkaline secretion is the prostate gland. preputial gland. bulbourethral gland. seminal gland (seminal vesicle). Bartholin's gland.

The first organ that sperm pass through is the __________. ductus deferens prostate gland ejaculatory duct epididymis

Sperm are moved along the ductus deferens (vas deferens) by ciliary action. hydrostatic force. hydraulic action. suction. peristaltic contractions.

The organ that monitors and adjusts the composition of tubular fluid, recycles damaged spermatozoa, and is the site of sperm maturation is the epididymis. ductus deferens. prostate gland. rete testis. seminal gland (seminal vesicle).

Sperm production occurs in the rete testis. seminiferous tubules. ductus deferens. seminal glands (seminal vesicles). epididymis.

The organ that produces a secretion that contains fructose, prostaglandins, and fibrinogen is the prostate gland. bulbourethral gland. corpus cavernosum. preputial gland. seminal gland (seminal vesicle).

Spermatozoa are functionally matured within the seminiferous tubules. rete testes. epididymis. ductus deferens. seminal gland (seminal vesicle).

The ________ is the part of the sperm that contains the DNA. head neck zona pellucida acrosome corona radiata

The special type of cell division required to produce gametes is called fertilization. maturation. meiosis. capacitation. mitosis

In a mature human spermatozoan, the head contains 23 chromosomes. acrosome is next to the flagellum. tail contains the mitochondria. head is diploid. midpiece contains the chromosomes.

The ________ of a sperm contains the enzymes essential for fertilization. nucleus nucleosome acrosome flagellum neck

The ________ carries fluid from the seminal gland (seminal vesicle) through the prostate. rete vas deferens ejaculatory duct epididymis ductus deferens

The role of FSH in males is to stimulate the interstitial cells to produce testosterone. initiate sperm production in the testes. stimulate the nurse cells to produce inhibin. influence sexual behaviors and sex drive. develop and maintain secondary sex characteristics.

The hormone that stimulates spermatogenesis in males is FSH. MSH. GH. LH. PTH.

The pituitary hormone that stimulates the interstitial cells to secrete testosterone is ACTH. FSH. ADH. GH. LH.

A boy has a genetic mutation such that FSH is not produced, but LH is normal. After the boy grows to maturity, it is likely he will produce large amounts of inhibin. be sterile. have impaired function of the interstitial cells. be impotent. not develop secondary sex characteristics.

A vasectomy would interfere with a man's ability to deliver spermatozoa to the ejaculatory duct. produce semen. secrete testosterone. make sperm. ejaculate.

The ________ provides mechanical protection, nutritional support, and waste removal for the developing embryo. corpus albicans uterus stroma ovary vagina

The inferior one-third portion of the uterus that projects into the vagina is the fundus. cervix. isthmus. body. fornix.

The thick muscular layer of the uterus is the myometrium. perimetrium. sarcometrium. endometrium. uterometrium

The internal os connects the uterine cavity to the cervical canal. external os. fundus. fornix. fimbra.

The lumen of the uterus is lined by the glandular __________. mesovarium perimetrium myometrium endometrium

Fatty folds of skin that encircle and partially conceal the labia minora and vestibule are the mons pubis. ampullae. fornices. vestibular arches. labia majora.

The ________ is the region of the vagina that surrounds the cervix. rugae fundus dartos external os fornix

Which region of the uterine tube captures the ovum? anterior segment posterior segment isthmus infundibulum ampulla

The ________ is the endometrial layer that undergoes dramatic changes during the menstrual cycle. basal layer functional zone stroma corpus albicans corpus letum

The vulva includes all of the following except the mons pubis. vagina. labia majora. clitoris. labia minora.

Which of the following statements about oogenesis is false? Meiosis II is not completed until after the egg cell makes contact with the sperm cell. The polar body is the egg cell which is then fertilized by the sperm cell. Far fewer eggs are produced by the female than sperm produced by the male. Meiosis I begins in the female fetus. The lack of viable oogonia in the ovaries leads to menopause in the female.

The hormone that stimulates ovulation is progesterone. growth hormone. FSH. testosterone. luteinizing hormone.

During the menses, a new uterine lining is formed. progesterone levels are high. secretory glands and blood vessels develop in the endometrium. the corpus luteum is most active. the old functional layer is sloughed off.

The painful condition that develops because epithelial tissue from the uterus is present in the peritoneal cavity is orchitis. peritonitis. ovarian cysts. lymphedema. endometriosis.

The ________ is the glycoprotein-rich region between the developing oocyte and the granulosa cells. acrosome corpus spongiosum zona pellucida corona radiata rugae

The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers atresia. menopause. menstruation. follicle maturation. ovulation.

During the proliferative phase of the menstrual cycle, the functional zone of the endometrium is restored. corpus luteum is forming. endometrium finalizes the preparation for implantation. fertilized ovum implants. old functional layer is sloughed off.

Menstruation is triggered by a drop in the levels of FSH. progesterone. relaxin. LH. inhibin.

Which of the following is not an action of estrogen? initiates repair of the endometrium maintains female secondary sex characteristics stimulates bone growth mimics the symptoms of menopause maintains accessory reproductive organs

Which of the following is not a similarity between the testis and ovary? Both produce gametes. Both respond to luteinizing hormone. Both respond to follicle-stimulating hormone. Meiosis takes place in both. Both produce progesterone.

The ________ consists of the follicle cells that cling to the oocyte after ovulation. corona radiata corpus albicans zona pellucida stroma corpus spongiosum

The granulosa cells of developing follicles secrete GnRH. LH. progesterone. FSH. estradiol.

The principal hormone secreted by the corpus luteum is FSH. progesterone. estrogen. luteosterone. LH.

Follicle-stimulating hormone stimulates the thyroid follicles. stimulates ovulation. stimulates maturation of primordial follicles in the ovary. is important only in females. All of the answers are correct.

The glands that produce mucus used as a lubricant during sexual intercourse are ________ glands. bulbourethral mons vulvular vestibular seminal

A rise in the blood levels of follicle-stimulating hormone at the beginning of the ovarian cycle is responsible for menstruation. menopause. ovulation. follicle maturation. atresia.

The primary follicle develops from the ovarian hilum. primordial follicle. tunica albuginea. ovarian stroma. granulosa cells.

A sample of a woman's blood is analyzed for reproductive hormone levels. The results indicate a high level of progesterone, relatively high levels of inhibin, and low levels of FSH and LH. The female is most likely experiencing ________ of the uterine cycle. the menses phase the secretory phase the menopause phase the menarche phase the proliferative phase

The uterine phase that develops because of a fall in progesterone levels is the secretory phase. menses. follicular phase. luteal phase. proliferative phase.

After ovulation, the ovary secretes progesterone. estrogen. luteinizing hormone. both estrogen and progesterone. luteinizing hormone, estrogen, and progesterone.

Which of the following statements about the female gamete is FALSE? They complete meiosis II after fertilization. They develop from oogonia. There are only about 1000 immature ova at birth. Their production begins before a girl is born.

At what point in the female cycle would the indicated structure be prominent? during menses at the beginning of a new menstrual cycle just before ovulation during formation of the corpus luteum

Which of the following statements concerning oogenesis is false? Ova develop from stem cells called oogonia. About half the oogonia complete mitosis between birth and puberty. An ovum completes its last meiosis after it is fertilized. Oogenesis begins before birth. By the time of their birth, girls have already lost about 80 percent of their oocytes.

The cessation of menstruation after no more developing follicles remain is called menopause. amenorrhea. menses. detumescence. dysmenorrhea.

Which of these reproductive system hormones is MISMATCHED to its source? LH; anterior lobe of pituitary gland FSH; anterior lobe of pituitary gland inhibin; gonads testosterone; posterior lobe of pituitary gland