reproductive system

51) Which of these glands secretes a fluid that lubricates the tip of the penis? A) prostate B) seminal gland C) bulbourethral gland D) vestibular gland E) Bartholinʹs gland

bulbourethral gland

41) The small paired structures at the base of the penis that secrete a thick, alkaline mucus are the A) seminal vesicles. B) prostate glands. C) vestibular glands. D) Bartholinʹs glands. E) bulbourethral glands.

bulbourethral glands.

18) The ________ is a layer of smooth muscle in the skin of the scrotal sac. A) rete testis B) raphe C) dartos muscle D) tunica albuginea E) cremaster muscle

dartos muscle

30) Secondary spermatocytes divide to produce ________ spermatids, each having ________ chromosomes. A) millions of; 46 B) four; 23 C) one; 46

four; 23

31) Which of the following is true immediately after a spermatogonium completes cell division? A) Mature spermatozoa enter the lumen. B) Fusion of diploid nuclei occurs .C) The primary spermatocyte is directed toward the lumen of the seminiferous tubule. D) Daughter cells of spermatogonia are haploid.

he primary spermatocyte is directed toward the lumen of the seminiferous tubule.

61) The ________ passes through the shaft of the penis to the external urethral meatus. A) penile urethra B) membranous urethra C) prostatic urethra

penile urethra

54) The organ that delivers semen into the female reproductive tract is the A) urethra. B) ejaculatory duct. C) penis. D) corpus cavernosum. E) corpus spongiosum.

penis

49) Sperm are moved along the ductus deferens by A) hydrostatic force. B) ciliary action. C) peristaltic contractions. D) suction. E) hydraulic action.

peristaltic contractions.

38) Nurse cells are notA) found in the seminiferous tubules. B) important in forming the blood-testis barrier. C) involved in coordinating spermatogenesis. D) precursors to gametes. E) also called Sertoli cells.

precursors to gametes.

55) The fold of skin that covers the glans penis is the A) ejaculatory duct. B) prepuce. C) corpus cavernosum. D) corpus spongiosum. E) penile urethra.

prepuce.

3) The male gonad is called a(n) A) ductus. B) epididymis. C) scrotum. D) testis. E) spermatid.

testis.

8) The tough fibrous capsule that surrounds the testis is called the A) median raphe. B) spermatic cord. C) tunica albuginea. D) dartos. E) epididymis.

tunica albuginea.

53) Which of the following is not required for arousal to occur? A) There must be sufficient blood hydrostatic pressure. B) The sacral spinal cord must be intact. C) Nitric oxide must be present. D) Sympathetic stimulation of sacral nerves. E) Parasympathetic stimulation of pelvic nerves.

Sympathetic stimulation of sacral nerves.

7) The spermatic cord is A) a bundle of tissue that contains the ductus deferens, blood vessels, nerves, and lymphatics that serve the testis. B) a narrow opening that links the scrotal chamber with the peritoneal cavity. C) the external marking of the boundary between the two chambers of the scrotum. D) 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.

4) Which of the following muscles move the testes towards the body? A) the cremaster B) the tunica muscularis C) the biceps brachii D) the dartos E) both the cremaster and the dartos

both the cremaster and the dartos

42) Spermatozoa functionally mature within the A) epididymis. B) ductus deferens .C) rete testes.

epididymis.

44) The organ that monitors and adjusts the composition of tubular fluid, recycles damaged spermatozoa, and is the site of sperm maturation is the A) ductus deferens. B) rete testis. C) seminal gland. D) epididymis. E) prostate gland.

epididymis.

25) The special type of cell division required to produce gametes is called A) mitosis. B) meiosis. C) maturation. D) capacitation.

meiosis.

60) The ________ penetrates the urogenital diaphragm. A) penile urethra B) membranous urethra C) prostatic urethra

membranous urethra

1) What is the function of gonads? A) produce gametes B) transport gametes C) produce hormones D) produce gametes and produce hormones

produce gametes and produce hormones

48) Functions of the accessory glands of the male reproductive system include all of the following except A) producing spermatozoa. B) meeting the nutrient needs of spermatozoa for motility. C) propelling spermatozoa and fluids along the reproductive tract. D) producing buffers. E) activating the spermatozoa.

producing spermatozoa.

43) The organ that surrounds the urethra and secretes an antibiotic protein is the A) seminal gland (seminal vesicle). B) bulbourethral gland. C) prostate gland. D) vestibular gland. E) Bartholinʹs gland.

prostate gland.

15) Contraction of the cremaster muscles A) relaxes the scrotal sac. B) pulls the testes closer to the body cavity. C) propels sperm through the urethra. D) moves sperm through the ductus deferens.

pulls the testes closer to the body cavity.

6) The external marking of the boundary between the two testes is the A) spermatic cord. B) raphe. C) tunica albuginea. D) acrosome. E) dartos muscle.

raphe.

19) The ________ is a fleshy pouch suspended below the perineum and anterior to the anus. A) scrotum B) rete testis C) raphe D) prostate gland E) bulbourethral gland

scrotum

23) The cells that are formed during spermatogenesis by the first meiosis are called A) spermatogonia. B) primary spermatocytes. C) secondary spermatocytes. D) spermatids.

secondary spermatocytes.

68) The nurse cells of the seminiferous tubules do all of the following except A) maintain the blood-testis barrier. B) support spermiogenesis. C) secrete inhibin. D) secrete testosterone.

secrete testosterone.

37) Sperm production occurs in the A) ductus deferens. B) seminiferous tubules. C) epididymis. D) seminal glands. E) rete testis.

seminiferous tubules.

22) When spermatogonia divide, the two daughter cells produced are a spermatogonium and a A) sperm. B) spermatocyte. C) spermatid. D) spermatozoon. E) Sertoli cell.

spermatocyte.

21) Sperm develop from stem cells called A) spermatogonia. B) primary spermatocytes. C) secondary spermatocytes. D) spermatids. E) spermatozoa

spermatogonia.

24) The process of spermiogenesis produces A) spermatogonia. B) primary spermatocytes. C) secondary spermatocytes. D) spermatids. E) spermatozoa.

spermatozoa.

39) The stage at which a spermatozoan detaches from the nurse cells and enters the seminiferous tubule is called A) division. B) meiosis. C) spermiation. D) spermiogenesis. E) capacitation.

spermiation.

32) Spermatids mature into spermatozoa by the process of A) spermatogenesis. B) meiosis. C) mitosis. D) spermiogenesis. E) capacitation.

spermiogenesis.

62) The penile urethra passes through the corpus A) cavernosum. B) spongiosum.

spongiosum.

29) How many tetrads form during synapsis? A) 23 B) hundreds C) thousands D) 46 E) 4

23

59) ________ is defined as an inability to achieve or maintain an erection. A) Infertility B) Benign prostatic hypertrophy C) Emission D) Sterility E) Impotence

Impotence

64) The pituitary hormone that stimulates the interstitial cells to secrete testosterone is A) FSH. B) LH. C) ACTH. D) ADH. E) GH.

LH.

2) The reproductive system does not include A) gonads and external genitalia. B) ducts that receive and transport the gametes. C) accessory glands and organs that secrete fluids. D) mammary glands. E) None of the answers is correct.

None of the answers is correct.

35) The ________ of a sperm contains the enzymes essential for fertilization. A) acrosomal cap B) neck C) middle piece D) flagellum

acrosomal cap

36) Interstitial cells produce A) sperm. B) inhibin. C) nutrients. D) androgens.

androgens.

67) 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 A) not develop secondary sex characteristics. B) be sterile. C) be impotent. D) have impaired function of the interstitial cells. E) produce large amounts of inhibin.

be sterile.

58) Emission and ejaculation require all of the following except A) sympathetic stimulation. B) peristaltic contractions of the ampulla. C) propulsion of semen. D) contractions of the bulbospongiosus muscle. E) contraction of the dartos muscles.

contraction of the dartos muscles.

57) The paired erectile bodies in the penis are the A) membranous urethra. B) penile urethra. C) corpus spongiosum. D) corpora cavernosa. E) prepuce.

corpora cavernosa.

46) The ________ is/are in contact with the posterior side to the urinary bladder. A) prostate gland B) bulbourethral gland C) seminal glands D) corpus cavernosum

corpus cavernosum

56) The erectile tissue that surrounds the urethra is the A) membranous urethra. B) penile urethra. C) glans penis. D) corpus spongiosum. E) corpus cavernosum.

corpus spongiosum.

66) A male bodybuilder starts taking injections of testosterone (an anabolic steroid) on a daily basis. After 3 weeks, which of the following would you not expect to observe? A) increased sex drive B) decreased levels of GnRH C) decreased levels of LH and FSH D) decreased levels of DHT

decreased levels of DHT

45) The organ that carries sperm from the epididymis to the urethra is the A) ductus deferens. B) epididymis. C) seminal gland. D) ejaculatory duct. E) corpus cavernosum.

ductus deferens

52) Contractions of the bulbospongiosus muscles result in A) erection. B) emission. C) ejaculation. D) detumescence. E) impotence.

ejaculation.

50) The ________ carries fluid from the seminal gland through the prostate. A) ductus deferens B) ejaculatory duct C) corpora cavernosa D) efferent tubule E) ampulla

ejaculatory duct

16) Contraction of the dartos muscle A) elevates the scrotal sac. B) produces an erection. C) propels sperm through the urethra. D) moves sperm through the ductus deferens. E) initiates seminal emission.

elevates the scrotal sac.

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

in the ductus deferens and ejaculatory duct

17) The ________ is an opening through which the spermatic cord passes. A) seminiferous tubule B) inguinal canal C) scrotal cavity D) efferent ductule

inguinal canal

63) The primary role of FSH in males is toA) stimulate the interstitial cells to produce testosterone. B) stimulate the nurse cells to produce inhibin. C) initiate sperm production in the testes. D) develop and maintain secondary sex characteristics. E) influence sexual behaviors and sex drive.

initiate sperm production in the testes

65) Testosterone is secreted by the A) hypothalamus. B) adenohypophysis. C) nurse cells. D) interstitial cells. E) suprarenal cortex.

interstitial cells.

5) Inward projections of the tunica albuginea, known as septa, divide the testis into A) seminiferous tubules. B) straight tubules. C) lobules. D) rete testis.

lobules.

28) During meiosis I, in maternal and paternal systems, chromosomes fuse together during the process called ________ to form a ________. A) synapsis; chromatid B) prophase I; chromatid C) synapsis; spermatid D) metaphase II; tetrad E) synapsis; tetrad

synapsis; tetrad

27) In a mature human spermatozoan, A) the acrosome is next to the tail. B) the middle piece contains the chromosomes. C) the tail contains the mitochondria. D) the head contains 46 chromosomes. E) the acrosome is next to the nucleus, and the head contains 23 chromosomes.

the acrosome is next to the nucleus, and the head contains 23 chromosomes.

9) The male reproductive system is most closely associated with which of the following systems? A) muscular B) urinary C) endocrine D) digestive E) integumentary

urinary