Deck 28: The Reproductive System

Question 1

The process of spermiogenesis produces

A)spermatogonia.
B)primary spermatocytes.
C)secondary spermatocytes.
D)spermatids.
E)spermatozoa.

Answer 1

E

Question 2

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 (seminal vesicle).
D)epididymis.
E)prostate gland.

Answer 2

D

Question 3

Which of the following muscles move the testes toward the body?

A)the cremaster
B)the tunica muscularis
C)the biceps brachii
D)the dartos
E)both the cremaster and the dartos muscles

Answer 3

E

Question 4

Inward projections of the tunica albuginea,known as septa,divide the testis into

A)seminiferous tubules.
B)straight tubules.
C)lobules.
D)rete testis.
E)the epididymis and the testis proper.

Question 5

Sperm are moved along the ductus deferens by

A)hydrostatic force.
B)ciliary action.
C)peristaltic contractions.
D)suction.
E)hydraulic action.

Question 6

When spermatogonia divide,the daughter cells are called

A)spermatogonia.
B)spermatocytes.
C)spermatids.
D)spermatozoa.
E)Sertoli cells.

Question 7

The reproductive system includes

A)gonads and external genitalia.
B)ducts that receive and transport the gametes.
C)accessory glands and organs that secrete fluids.
D)organs for copulation.
E)All of the answers are correct.

Question 8

Sperm develop from stem cells called

A)spermatogonia.
B)primary spermatocytes.
C)secondary spermatocytes.
D)spermatids.
E)spermatozoa.

Question 9

The organ that produces a secretion that contains fructose,prostaglandins,and fibrinogen is the

A)prostate gland.
B)bulbourethral gland.
C)seminal gland (seminal vesicle).
D)corpus cavernosum.
E)preputial gland.

Question 10

Sperm production occurs in the

A)ductus deferens.
B)seminiferous tubules.
C)epididymis.
D)seminal glands (seminal vesicles).
E)rete testis.

Question 11

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.
E)a dense layer of connective tissue that surrounds the testis.

Question 12

The reproductive system

A)produces gametes.
B)stores gametes.
C)transports gametes.
D)nourishes gametes.
E)All of the answers are correct.

Question 13

Interstitial cells produce

A)sperm.
B)inhibin.
C)nutrients.
D)androgens.
E)androgen-binding protein.

Question 14

Straight tubules originate at the seminiferous tubules and form a network of passageways called the

A)epididymis.
B)ductus deferens.
C)rete testis.
D)efferent ducts.
E)vas deferens.

Question 15

The nurse cells of the seminiferous tubules do all of the following,except that they

A)maintain the blood-testis barrier.
B)support spermiogenesis.
C)secrete inhibin.
D)secrete testosterone.
E)secrete androgen-binding protein.

Question 16

The organ that surrounds the urethra and produces an alkaline secretion is the

A)seminal gland (seminal vesicle).
B)bulbourethral gland.
C)prostate gland.
D)preputial gland.
E)Bartholin's gland.

Question 17

The cells that are formed during spermatogenesis by the first meiosis are called

A)spermatogonia.
B)primary spermatocytes.
C)secondary spermatocytes.
D)spermatids.
E)spermatozoa.

Question 18

The organ that carries sperm from the epididymis to the urethra is the

A)ductus deferens.
B)epididymis.
C)seminal gland (seminal vesicle).
D)ejaculatory duct.
E)corpus cavernosum.

Question 19

The dense layer of connective tissue that surrounds the testis is called the

A)median raphe.
B)spermatic cord.
C)tunica albuginea.
D)dartos.
E)epididymis.

Question 20

Arrange the four structures listed below into the order in which sperm pass from the testis to the urethral meatus. 1.ductus deferens
2)urethra
3)ejaculatory duct
4)epididymis

A)1,3,4,2
B)4,3,1,2
C)4,1,2,3
D)4,1,3,2
E)1,4,3,2

Question 21

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)preputial glands.
D)Bartholin glands.
E)bulbo-urethral glands.

Question 22

The special type of cell division required to produce gametes is called

A)mitosis.
B)meiosis.
C)maturation.
D)capacitation.
E)fertilization.

Question 23

The role of FSH in males is to

A)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.

Question 24

The paired erectile bodies in the penis are the

A)membranous urethra.
B)penile urethra.
C)corpus spongiosum.
D)corpora cavernosa.
E)prepuce.

Question 25

The male reproductive system is most closely associated with which of the following systems?

A)muscular
B)urinary
C)endocrine
D)digestive
E)integumentary

Question 26

Semen contains all of the following,except

A)spermatozoa.
B)seminal fluid.
C)prostaglandins.
D)spermatogonia.
E)fibrinogen.

Question 27

The erectile tissue that surrounds the urethra is the

A)membranous urethra.
B)penile urethra.
C)glans penis.
D)corpus spongiosum.
E)corpus cavernosum.

Question 28

Nurse cells

A)are found in the seminiferous tubules.
B)form the blood-testis barrier.
C)coordinate spermatogenesis.
D)secrete the hormone inhibin.
E)All of the answers are correct.

Question 29

The delicate layer of serous membrane that covers the testis is called the

A)median raphe.
B)tunica vaginalis.
C)tunica albuginea.
D)dartos.
E)lamina propria.

Question 30

The pituitary hormone that stimulates the interstitial cells to secrete testosterone is

A)FSH.
B)LH.
C)ACTH.
D)ADH.
E)GH.

Question 31

The special type of cell division required to produce gametes is called

A)mitosis.
B)meiosis.
C)maturation.
D)capacitation.
E)fertilization.

Question 32

Which of the following glands secretes fructose to nourish the sperm?

A)prostate gland
B)rete testis
C)seminal gland (seminal vesicle)
D)bulbourethral gland
E)prepuce

Question 33

Spermatozoa are functionally matured within the

A)epididymis.
B)ductus deferens.
C)rete testes.
D)seminiferous tubules.
E)seminal gland (seminal vesicle).

Question 34

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.

Question 35

A primary spermatocyte matures into ________ spermatids having ________ chromosomes.

A)millions of; 46
B)four; 23
C)one; 46
D)millions of; 23
E)four; 46

Question 36

The urethral meatus is an opening in the

A)prepuce.
B)glans penis.
C)corpus spongiosum.
D)corpus cavernosum.
E)corona radiata.

Question 37

During meiosis I,maternal and paternal 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

Question 38

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.

Question 39

Which of the following can be found inside the spermatic cord?

A)blood vessels
B)nerves
C)lymphatic vessels
D)ductus deferens
E)All of the answers are correct.

Question 40

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.

Question 41

Which of the following occurs after a spermatogonium completes cell division?

A)Mature spermatozoa enter the lumen.
B)Fusion of diploid nuclei occurs.
C)One daughter cell is directed toward the lumen of the seminiferous tubule.
D)Gamete production accelerates.
E)Spermiogenesis begins.

Question 42

Interstitial cells

A)are also called Leydig cells.
B)respond to luteinizing hormone.
C)produce testosterone.
D)are located between seminiferous tubules.
E)All of the answers are correct.

Question 43

Contraction of the cremaster muscles

A)tenses 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.
E)tenses the scrotal sac and pulls the testes closer to the body cavity.

Question 44

If the prostate stopped secreting fluid,this would result in semen

A)that lacked sperm.
B)with a higher than normal pH.
C)with less fructose.
D)with no mucus.
E)that was rich in prostaglandins.

Question 45

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

Question 46

A male bodybuilder starts taking injections of testosterone (an anabolic steroid)on a daily basis.After 3 weeks,which of the following would you expect to observe?

A)increased sex drive
B)decreased levels of GnRH
C)decreased levels of LH and FSH
D)increased muscle mass
E)All of the answers are correct.

Question 47

Contraction of the dartos muscle

A)tightens the scrotal sac.
B)produces an erection.
C)propels sperm through the urethra.
D)moves sperm through the ductus deferens.
E)initiates seminal emission.

Question 48

Scarring of the rete testis would interfere with a man's ability to

A)secrete testosterone.
B)regulate spermatogenesis.
C)ejaculate.
D)produce an alkaline semen.
E)deliver spermatozoa to the epididymis.

Question 49

Secondary spermatocytes each contain

A)23 chromosomes.
B)23 pairs of chromosomes.
C)twice the diploid number of chromosomes.
D)46 pairs of chromosomes.
E)46 chromosomes.

Question 50

How many tetrads form during synapsis?

A)23
B)hundreds
C)thousands
D)46
E)4

Question 51

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "3."

A)corpora cavernosa
B)prostatic urethra
C)corpus spongiosum
D)spongy urethra
E)ejaculatory duct

Question 52

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "11."

A)bulbourethral gland
B)prostate gland
C)seminal gland (seminal vesicle)
D)epididymis
E)ductus deferens

Question 53

A typical ejaculation releases approximately ________ sperm.

A)1 million
B)250 million
C)100,000
D)20 million
E)800 million

Question 54

Functions of the accessory glands of the male reproductive system include all of the following,except

A)production of 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.

Question 55

Testosterone is secreted by the

A)hypothalamus.
B)adenohypophysis.
C)nurse cells.
D)interstitial cells.
E)suprarenal cortex.

Question 56

Testicular nurse cells function in all of the following ways,except that they don't

A)secrete Müllerian inhibiting factor.
B)secrete progesterone-binding protein.
C)coordinate spermiogenesis.
D)support meiosis.
E)serve as a blood-testis barrier.

Question 57

In a mature human spermatozoan,

A)the acrosome is next to the flagellum.
B)the midpiece contains the chromosomes.
C)the tail contains the mitochondria.
D)the head contains 23 chromosomes.
E)the head is diploid.

Question 58

The ductus deferens is approximately ________ cm long.

A)15-20
B)50-60
C)40-45
D)31-35
E)12

Question 59

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.

Question 60

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
What is produced by the structure labeled "7"?

A)seminal fluids
B)spermatozoa
C)testosterone
D)FSH
E)spermatozoa and testosterone

Question 61

The inferior portion of the uterus that projects into the vagina is the

A)isthmus.
B)fornix.
C)fundus.
D)body.
E)cervix.

Question 62

A rise in the blood levels of follicle-stimulating hormone at the beginning of the ovarian cycle is responsible for

A)follicle maturation.
B)menstruation.
C)ovulation.
D)menopause.
E)atresia.

Question 63

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure that produces a fructose-rich fluid.

A)9
B)10
C)11
D)12
E)13

Question 64

The thick muscular layer of the uterus is the

A)endometrium.
B)perimetrium.
C)myometrium.
D)uterometrium.
E)sarcometrium.

Question 65

The organ that transports the ovum to the uterus is the

A)uterosacral ligament.
B)vagina.
C)uterine tube.
D)infundibulum.
E)myometrium.

Question 66

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "4."

A)testis
B)prostate gland
C)seminal gland (seminal vesicle)
D)epididymis
E)ductus deferens

Question 67

Each of the following statements concerning oogenesis is true,except that

A)oogenesis begins before birth.
B)ova develop from stem cells called oogonia.
C)an ovum completes its last meiosis after it is fertilized.
D)about half the oogonia complete mitosis between birth and puberty.
E)by the time of their birth,girls have already lost about 80 percent of their oocytes.

Question 68

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "6."

A)ejaculatory duct
B)seminiferous tubule
C)ductus deferens
D)epididymis
E)testis

Question 69

The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers

A)follicle maturation.
B)menstruation.
C)ovulation.
D)menopause.
E)atresia.

Question 70

During the secretory phase of the menstrual cycle

A)the fertilized ovum implants.
B)progesterone levels are high.
C)endometrial glands enlarge.
D)the corpus luteum is formed.
E)All of the answers are correct.

Question 71

During the proliferative phase of the menstrual cycle,

A)the corpus luteum is forming.
B)the functional zone of the endometrium is restored.
C)the fertilized ovum implants.
D)the old functional layer is sloughed off.
E)the endometrium finalizes the preparation for implantation.

Question 72

The average length of the menstrual cycle is

A)16 days.
B)19 days.
C)21 days.
D)28 days.
E)35 days.

Question 73

Which of the following descriptions best matches the term endometrium?

A)thick layer of smooth muscle cells
B)supports the uterus anteriorly
C)supports the uterus laterally
D)consists of a functional zone and a basilar zone
E)after ovulation,the ovum is captured by it

Question 74

The round ligaments extend from the

A)base of the uterus and vagina to the lateral walls of the pelvis.
B)lateral surface of the uterus to the anterior surface of the sacrum.
C)lateral margins of the uterus,through the inguinal canal to the external genitalia.
D)body of the uterus to the fundus.
E)cervix of the uterus to the vagina.

Question 75

The broad ligament is

A)an extensive mesentery that encloses the ovaries,uterine tubes,and uterus.
B)a thickened fold of mesentery that supports and stabilizes the position of the ovary.
C)a pocket formed between the posterior wall of the uterus and the anterior surface of the rectum.
D)a structure that anchors the ovary to the rectouterine pouch.
E)a structure that extends from the lateral surface of the ovary to the pelvic wall.

Question 76

The organ that provides mechanical protection and nutritional support for the developing embryo is the

A)vagina.
B)uterine tube.
C)ovary.
D)uterus.
E)cervix.

Question 77

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "2."

A)penile urethra
B)ejaculatory duct
C)corpora cavernosa
D)corpus spongiosum
E)membranous urethra

Question 78

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "12."

A)prostatic urethra
B)ejaculatory duct
C)ductus deferens
D)vas deferens
E)membranous urethra

Question 79

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "1."

A)membranous urethra
B)ejaculatory duct
C)corpora cavernosa
D)corpus spongiosum
E)membranous urethra

Question 80

Figure 28-1 The Male Reproductive System
Use Figure 28-1 to answer the following questions:
Identify the structure labeled "9."

A)scrotum
B)cremaster muscle
C)ductus deferens
D)testis
E)prepuce