Question 1

In meiosis, each parent cell produces

Accepted Answer

A)  two haploid cells.
B)  four haploid cells.
C)  two diploid cells.
D)  four diploid cells.
E)  haploid cells identical to the parent cell.

Question 2

This image shows a section of the testis and scrotal contents.What does "2" represent?

Accepted Answer

A)  spermatic cord
B)  epididymis
C)  rete testis
D)  seminiferous tubules
E)  ductus (vas)  deferens

Question 3

Spermiogenesis is the last stage of meiosis.

Accepted Answer

A) True 
 B)False

Question 4

The acrosome contains enzymes used to

Accepted Answer

A)  dissolve the mucosa of the vagina.
B)  dissolve the mucosa of the uterus.
C)  dissolve the stickiness of the semen.
D)  penetrate the vagina.
E)  penetrate barriers surrounding the ovum.

Question 5

At what stage does a developing sperm cell begin to grow a tail?

Accepted Answer

A)  spermatozoon
B)  spermatid
C)  primary spermatocyte
D)  secondary spermatocyte
E)  spermatogonium

Question 6

Dilation of the causes the lacunae to fill with blood and the penis to become erect.

Accepted Answer

A)  helicine arteries
B)  internal pudendal (penile)  arteries
C)  dorsal arteries
D)  dorsal veins
E)  deep arteries

Question 7

When it is cold, the contracts and draws the testes closer to the body to keep them warm.

Accepted Answer

A)  cremaster muscle
B)  pampiniform plexus
C)  corpus spongiosum
D)  perineum
E)  corpus cavernosum

Question 8

The is the gonad and the is the gamete.

Accepted Answer

A)  testis; ovary
B)  testis; semen
C)  testis; sperm
D)  sperm; semen
E)  semen; sperm

Question 9

By volume, most of the semen is produced in the

Accepted Answer

A)  testes.
B)  penis.
C)  prostate gland.
D)  seminal vesicles.
E)  bulbourethral glands.

Question 10

The has/have no androgen receptors and do/does not respond to it.

Accepted Answer

A)  germ cells
B)  muscular tissue
C)  sustentacular cells
D)  hypothalamus
E)  pituitary gland

Question 11

Sustentacular cells secrete inhibin, which regulates the rate of sperm production.

Accepted Answer

A) True 
 B)False

Question 12

The is/are the site(s)  of sperm maturation and storage.

Accepted Answer

A)  seminiferous tubules
B)  rete testis
C)  prostate gland
D)  ductus epididymides
E)  seminal vesicles

Question 13

Changes called male climacteric are a consequence of

Accepted Answer

A)  increased secretion of estrogens.
B)  increased secretion of progesterone.
C)  decreased secretion of testosterone.
D)  increased secretion of FSH and LH.
E)  increased secretion of GnRH.

Question 14

Sildenafil (Viagra)  prolongs erection by

Accepted Answer

A)  activating nitric oxide (NO)  production.
B)  inactivating guanylate cyclase.
C)  stimulating production of cGMP.
D)  inhibiting degradation of cGMP.
E)  inhibiting nitric oxide (NO)  production.

Question 15

The countercurrent heat exchanger that prevents arterial blood from overheating the testes is

Accepted Answer

A)  the rete testis.
B)  the epididymis.
C)  the pampiniform plexus of veins.
D)  the blood-testis barrier.
E)  the scrotal portal system.

Question 16

From their formation to ejaculation, sperm cells take the following pathway:

Accepted Answer

A)  seminiferous tubule, epididymis, rete testis, urethra, ejaculatory duct, ductus deferens.
B)  seminiferous tubule, epididymis, rete testis, ejaculatory duct, ductus deferens, urethra.
C)  seminiferous tubule, epididymis, rete testis, ductus deferens, ejaculatory duct, urethra.
D)  seminiferous tubule, rete testis, epididymis, ductus deferens, ejaculatory duct, urethra.
E)  seminiferous tubule, rete testis, epididymis, ejaculatory duct, urethra, ductus deferens.

Question 17

A sperm count any lower than million sperm per mL of semen is usually associated with infertility (sterility) .

Accepted Answer

A)  250 to 500
B)  200 to 250
C)  100 to 200
D)  50 to 100
E)  20 to 25

Question 18

When do the testes start secreting testosterone?

Accepted Answer

A)  in the first trimester of fetal development
B)  in the first trimester after birth
C)  in the first three years after birth
D)  in the first three years of adolescence
E)  after the first ejaculation

Question 19

At early puberty, follicle stimulating hormone (FSH) and luteinizing hormone (LH) stimulate enlargement of the testes.

Accepted Answer

A) True 
 B)False

Exam 27: The Male Reproductive System

Sildenafil (Viagra) prolongs erection by

Correct Answer
verified

From their formation to ejaculation, sperm cells take the following pathway:

Correct Answer
verified

In meiosis, each parent cell produces

Correct Answer
verified

The has/have no androgen receptors and do/does not respond to it.

Correct Answer
verified

When it is cold, the contracts and draws the testes closer to the body to keep them warm.

Correct Answer
verified

At early puberty, follicle stimulating hormone (FSH) and luteinizing hormone (LH) stimulate enlargement of the testes.

Correct Answer
verified

Dilation of the causes the lacunae to fill with blood and the penis to become erect.

Correct Answer
verified

At what stage does a developing sperm cell begin to grow a tail?

Correct Answer
verified

The countercurrent heat exchanger that prevents arterial blood from overheating the testes is

Correct Answer
verified

The acrosome contains enzymes used to

Correct Answer
verified

Sustentacular cells secrete inhibin, which regulates the rate of sperm production.

Correct Answer
verified

Changes called male climacteric are a consequence of

Correct Answer
verified

This image shows a section of the testis and scrotal contents.What does "2" represent?

Correct Answer
verified

The is the gonad and the is the gamete.

Correct Answer
verified

When do the testes start secreting testosterone?

Correct Answer
verified

Spermiogenesis is the last stage of meiosis.

Correct Answer
verified

The is/are the site(s) of sperm maturation and storage.

Correct Answer
verified

By volume, most of the semen is produced in the

Correct Answer
verified

A sperm count any lower than million sperm per mL of semen is usually associated with infertility (sterility) .

Correct Answer
verified

Exam 27: The Male Reproductive System

Sildenafil (Viagra) prolongs erection by

Correct AnswerverifiedShow Answer

From their formation to ejaculation, sperm cells take the following pathway:

Correct AnswerverifiedShow Answer

In meiosis, each parent cell produces

Correct AnswerverifiedShow Answer

The has/have no androgen receptors and do/does not respond to it.

Correct AnswerverifiedShow Answer

When it is cold, the contracts and draws the testes closer to the body to keep them warm.

Correct AnswerverifiedShow Answer

At early puberty, follicle stimulating hormone (FSH) and luteinizing hormone (LH) stimulate enlargement of the testes.

Correct AnswerverifiedShow Answer

Dilation of the causes the lacunae to fill with blood and the penis to become erect.

Correct AnswerverifiedShow Answer

At what stage does a developing sperm cell begin to grow a tail?

Correct AnswerverifiedShow Answer

The countercurrent heat exchanger that prevents arterial blood from overheating the testes is

Correct AnswerverifiedShow Answer

The acrosome contains enzymes used to

Correct AnswerverifiedShow Answer

Sustentacular cells secrete inhibin, which regulates the rate of sperm production.

Correct AnswerverifiedShow Answer

Changes called male climacteric are a consequence of

Correct AnswerverifiedShow Answer

This image shows a section of the testis and scrotal contents.What does "2" represent?

Correct AnswerverifiedShow Answer

The is the gonad and the is the gamete.

Correct AnswerverifiedShow Answer

When do the testes start secreting testosterone?

Correct AnswerverifiedShow Answer

Spermiogenesis is the last stage of meiosis.

Correct AnswerverifiedShow Answer

The is/are the site(s) of sperm maturation and storage.

Correct AnswerverifiedShow Answer

By volume, most of the semen is produced in the

Correct AnswerverifiedShow Answer

A sperm count any lower than million sperm per mL of semen is usually associated with infertility (sterility) .

Correct AnswerverifiedShow Answer

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