Question 1

are not found in or around the seminiferous tubules.

Accepted Answer

A)  Interstitial (Leydig)  cells
B)  Germ cells
C)  Sustentacular (Sertoli)  cells
D)  Spermatids
E)  Corpus cavernosum cellsF) B) and C)
G) A) and B)

Question 2

Sympathetic nerve fibers trigger the secretion of nitric oxide, which dilates the deep arteries allowing
blood to engorge the penis.

Accepted Answer

A) True 
 B)False

Question 3

This image shows spermatogenesis.What does "3" represent?

Accepted Answer

A)  spermatogonium
B)  secondary spermatocyte
C)  primary spermatocyte
D)  spermatid
E)  spermF) B) and E)
G) D) and E)

Question 4

Erectile dysfunction prevents ejaculation in most cases.

Accepted Answer

A) True 
 B)False

Question 5

The presence of the Y chromosome guarantees the development of male secondary sex organs.

Accepted Answer

A) True 
 B)False  False

Question 6

Why would an enlarged prostate gland interfere with urination?

Accepted Answer

A)  It inhibits urine production.
B)  It develops calcified deposits that block the urethra.
C)  It produces thicker prostatic secretions that block the urethra.
D)  It inhibits the micturition reflex.
E)  It compresses the urethra.F) B) and E)
G) B) and C)

Question 7

The penile urethra is enclosed by the

Accepted Answer

A)  corpus cavernosum.
B)  corpus spongiosum.
C)  trabecular muscle.
D)  prepuce.
E)  frenulum.F) A) and D)
G) All of the above

Question 8

This image shows a sagittal section of the male reproductive system.What does "4" represent?

Accepted Answer

A)  seminal vesicle
B)  urethra
C)  bulbourethral gland
D)  prostate gland
E)  ejaculatory ductF) B) and C)
G) A) and E)

Question 9

Which of the following hormones directly stimulates the development of male secondary sex characteristics?

Accepted Answer

A)  estrogen
B)  inhibin
C)  luteinizing hormone
D)  follicle stimulating hormone
E)  testosteroneF) A) and E)
G) C) and E)

Question 10

In the process of spermiogenesis, become .

Accepted Answer

A)  spermatocytes; spermatozoa
B)  spermatozoa; spermatids
C)  spermatogonia; spermatocytes
D)  spermatocytes; spermatids
E)  spermatids; spermatozoaF) C) and D)
G) B) and C)

Question 11

The first haploid stage of spermatogenesis is prophase II.

Accepted Answer

A) True 
 B)False

Question 12

The scrotum contains the testes and spermatic cords.

Accepted Answer

A) True 
 B)False

Question 13

stimulates the descent of the testes.

Accepted Answer

A)  The presence of Y chromosome
B)  The presence of the X chromosome
C)  The absence of the X chromosome
D)  Testosterone
E)  EstrogensF) B) and C)
G) A) and E) D

Question 14

stimulates the interstitial cells of the testes to secrete .

Accepted Answer

A)  Gonadotropin-releasing hormone (GnRH) ; LH
B)  Follicle-stimulating hormone (FSH) ; androgen-binding protein (ABP) 
C)  Luteinizing hormone (LH) ; androgen-binding protein (ABP) 
D)  Luteinizing hormone (LH) ; testosterone
E)  Luteinizing hormone (LH) ; estrogenF) B) and C)
G) C) and D) D

Question 15

Only germ cells undergo meiosis, which produces four haploid cells with 23 chromosomes each.

Accepted Answer

A) True 
 B)False

Question 16

At the end of meiosis I there are , whereas at the end of meiosis II there is/are .

Accepted Answer

A)  two diploid cells; one diploid cell
B)  two diploid cells; one haploid cell
C)  two diploid cells; four haploid cells
D)  two haploid cells; four haploid cells
E)  two haploid cells; one diploid cellF) C) and D)
G) A) and B)

Question 17

Testosterone stimulates development of the secondary sex characteristics, spermatogenesis, and
libido.

Accepted Answer

A) True 
 B)False

Question 18

The is an example of the female external genitalia.

Accepted Answer

A)  scrotum
B)  clitoris
C)  uterine tube
D)  seminal vesicle
E)  vaginaF) C) and D)
G) All of the above

Question 19

Which hormone suppresses spermatogenesis without affecting testosterone secretion?

Accepted Answer

A)  gonadotropin-releasing hormone (GnRH) 
B)  testosterone itself
C)  inhibin
D)  luteinizing hormone (LH) 
E)  follicle-stimulating hormone (FSH) F) C) and D)
G) B) and C)

Question 20

Which of the following are primary sex organs?

Accepted Answer

A)  ova
B)  uterine tubes
C)  breasts
D)  ovaries
E)  scent glandsF) None of the above
G) D) and E)

Exam 27: The Male Reproductive System

are not found in or around the seminiferous tubules.

Correct AnswerverifiedShow Answer

Sympathetic nerve fibers trigger the secretion of nitric oxide, which dilates the deep arteries allowing blood to engorge the penis.

Correct AnswerverifiedShow Answer

This image shows spermatogenesis.What does "3" represent?

Correct AnswerverifiedShow Answer

Erectile dysfunction prevents ejaculation in most cases.

Correct AnswerverifiedShow Answer

The presence of the Y chromosome guarantees the development of male secondary sex organs.

Correct AnswerverifiedFalse

Why would an enlarged prostate gland interfere with urination?

Correct AnswerverifiedShow Answer

The penile urethra is enclosed by the

Correct AnswerverifiedShow Answer

This image shows a sagittal section of the male reproductive system.What does "4" represent?

Correct AnswerverifiedShow Answer

Which of the following hormones directly stimulates the development of male secondary sex characteristics?

Correct AnswerverifiedShow Answer

In the process of spermiogenesis, become .

Correct AnswerverifiedShow Answer

The first haploid stage of spermatogenesis is prophase II.

Correct AnswerverifiedShow Answer

The scrotum contains the testes and spermatic cords.

Correct AnswerverifiedShow Answer

stimulates the descent of the testes.

Correct AnswerverifiedD

stimulates the interstitial cells of the testes to secrete .

Correct AnswerverifiedD

Only germ cells undergo meiosis, which produces four haploid cells with 23 chromosomes each.

Correct AnswerverifiedShow Answer

At the end of meiosis I there are , whereas at the end of meiosis II there is/are .

Correct AnswerverifiedShow Answer

Testosterone stimulates development of the secondary sex characteristics, spermatogenesis, and libido.

Correct AnswerverifiedShow Answer

The is an example of the female external genitalia.

Correct AnswerverifiedShow Answer

Which hormone suppresses spermatogenesis without affecting testosterone secretion?

Correct AnswerverifiedShow Answer

Which of the following are primary sex organs?

Correct AnswerverifiedShow Answer

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D

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D

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