Question 1

Which of the following are primary sex organs?

Accepted Answer

A)   Ova
B)   Uterine tubes
C)   Breasts
D)   Ovaries
E)   Scent glandsF) B) and E)
G) None of the above

Question 2

Sperm cells get energy to power their movement from __________,which is contributed by the __________.

Accepted Answer

A)   prostaglandins;prostate
B)   sucrose;bulbourethral gland
C)   fructose;seminal vesicles
D)   seminogelin;prostate
E)   semen;seminiferous glandF) D) and E)
G) B) and E)

Question 3

The penis is innervated by the __________ nerve.

Accepted Answer

A)   internal pudendal
B)   obturator
C)   penile
D)   ventral
E)   external pudendalF) D) and E)
G) A) and B)

Question 4

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 arteriesF) A) and D)
G) C) and D)

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

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 ejaculationF) A) and E)
G) All of the above

Question 7

The first haploid (n)stage of spermatogenesis is prophase II.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

The __________ is the small,bilateral organ found lateral to the membranous urethra.

Accepted Answer

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

Question 10

Which of the following is inhibited by testosterone?

Accepted Answer

A)   Libido
B)   Development of secondary sex organs
C)   Development of secondary sex characteristics
D)   Gonadotropin-releasing hormone (GnRH) secretion
E)   Sperm productionF) B) and C)
G) A) and C)

Question 11

Whether an organism will be genetically male or female is determined by __________.

Accepted Answer

A)   hormonal,genetic and environmental factors
B)   prenatal hormone exposure
C)   the egg
D)   the sperm
E)   the egg and sperm equallyF) A) and B)
G) All of the above

Question 12

Which of the following is an androgen?

Accepted Answer

A)   Estrogen
B)   Progesterone
C)   Testosterone
D)   Luteinizing hormone (LH) 
E)   Follicle-stimulating hormone (FSH) F) A) and E)
G) All of the above

Question 13

The penile urethra is enclosed by the __________.

Accepted Answer

A)   corpus cavernosum
B)   corpus spongiosum
C)   trabecular muscle
D)   prepuce
E)   frenulumF) C) and D)
G) C) and E)

Question 14

Descent of the testes is stimulated by the __________.

Accepted Answer

A)   presence of Y chromosome
B)   presence of the X chromosome
C)   absence of the X chromosome
D)   presence of testosterone
E)   presence of estrogensF) A) and C)
G) All of the above

Question 15

Why would an enlarged prostate 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 D)
G) B) and C)

Question 16

Changes called male climacteric are a consequence of a(n) __________.

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 GnRHF) A) and B)
G) C) and E)

Question 17

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

Accepted Answer

A)   cremaster
B)   pampiniform plexus
C)   corpus spongiosum
D)   perineum
E)   corpus cavernosumF) A) and B)
G) A) and C)

Question 18

Men have only one __________.

Accepted Answer

A)   bulbourethral gland
B)   prostate
C)   ejaculatory duct
D)   seminal vesicle
E)   corpus cavernosumF) B) and E)
G) A) and E)

Question 19

The __________ is the site of sperm maturation and storage.

Accepted Answer

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

Question 20

Which of the following is the most important role of meiosis in sexual reproduction?

Accepted Answer

A)   It reduces the size of the gametes.
B)   It produces at least one gamete that is mobile.
C)   It prevents the chromosome number from doubling in each generation.
D)   It ensures that each daughter cell doubles the number of chromosomes.
E)   It changes the genetic composition of each chromosome.F) A) and E)
G) A) and C)

Exam 27: The Male Reproductive System

When do the testes start secreting testosterone?

Correct AnswerverifiedShow Answer

Whether an organism will be genetically male or female is determined by __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is inhibited by testosterone?

Correct AnswerverifiedShow Answer

The __________ is the site of sperm maturation and storage.

Correct AnswerverifiedShow Answer

The penile urethra is enclosed by the __________.

Correct AnswerverifiedShow Answer

Men have only one __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Descent of the testes is stimulated by the __________.

Correct AnswerverifiedShow Answer

Sperm cells get energy to power their movement from __________,which is contributed by the __________.

Correct AnswerverifiedShow Answer

The first haploid (n)stage of spermatogenesis is prophase II.

Correct AnswerverifiedShow Answer

Which of the following is the most important role of meiosis in sexual reproduction?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is an androgen?

Correct AnswerverifiedShow Answer

The penis is innervated by the __________ nerve.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Changes called male climacteric are a consequence of a(n) __________.

Correct AnswerverifiedShow Answer

Which of the following are primary sex organs?

Correct AnswerverifiedShow Answer

The __________ is the small,bilateral organ found lateral to the membranous urethra.

Correct AnswerverifiedShow Answer

Why would an enlarged prostate interfere with urination?

Correct AnswerverifiedShow Answer

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Sperm cells get energy to power their movement from ,which is contributed by the .

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