Question 1

The penis is homologous to

Accepted Answer

A)  the appendix.
B)  a finger.
C)  the urethra.
D)  the vagina.
E)  the clitoris.F) B) and D)
G) B) and C)

Question 2

Sexual reproduction entails the union of two gonads to form a zygote.

Accepted Answer

A) True 
 B)False

Question 3

Sperm make up just 10% of semen volume.

Accepted Answer

A) True 
 B)False

Question 4

is/are generally accepted as a secondary sex characteristic.

Accepted Answer

A)  The enlargement of the breasts
B)  The presence of testes
C)  The prostate gland
D)  The uterus
E)  The vaginaF) A) and E)
G) All of the above

Question 5

Myotonia of skeletal muscles is characteristic of the excitement phase and refractory period.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

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

Question 7

Which of the following is a secondary sex organ?

Accepted Answer

A)  testis
B)  ovary
C)  vagina
D)  facial hair
E)  distribution of body fatF) A) and C)
G) B) and D)

Question 8

Men have only one but have two of all the rest of these.

Accepted Answer

A)  bulbourethral gland(s) 
B)  prostate gland(s) 
C)  ejaculatory duct(s) 
D)  seminal vesicle(s) 
E)  corpus(ora)  cavernosum(a) F) C) and E)
G) B) and E)

Question 9

determine/s whether an organism will be genetically male or female.

Accepted Answer

A)  Hormonal, genetic and environmental factors
B)  Prenatal hormone exposure
C)  The egg
D)  The sperm
E)  Both egg and sperm equallyF) A) and B)
G) All of the above

Question 10

All of the following play a role in thermoregulation of the testes except

Accepted Answer

A)  the bulbospongiosus muscle.
B)  the cremaster muscle.
C)  the pampiniform plexus of veins.
D)  the countercurrent heat exchanger.
E)  the dartos muscle.F) A) and E)
G) C) and D)

Question 11

Testosterone inhibits

Accepted Answer

A)  libido.
B)  development of secondary sex organs.
C)  development of secondary sex characteristics.
D)  gonadotropin-releasing hormone (GnRH)  secretion.
E)  sperm production.F) A) and B)
G) A) and E)

Question 12

The orgasm-emission phase of the male sexual response is stimulated by

Accepted Answer

A)  efferent sympathetic signals from the sacral region of the spinal cord.
B)  efferent sympathetic signals from the lumbar region of the spinal cord.
C)  efferent parasympathetic signals from the sacral region of the spinal cord.
D)  efferent parasympathetic signals from the lumbar region of the spinal cord.
E)  efferent somatic signals from the thoracic region of the spinal cord.F) C) and D)
G) B) and C)

Question 13

Heart rate, blood pressure, and respiratory rate peak during the

Accepted Answer

A)  excitement phase.
B)  erection of the penis.
C)  climax (orgasm) .
D)  plateau phase.
E)  resolution phase.F) A) and B)
G) A) and D)

Question 14

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) C) and D)
G) All of the above

Question 15

As a result of spermatogenesis and spermiogenesis, the final cells produced are called , but they and all the stages leading up to them can be called .

Accepted Answer

A)  sperm cells; interstitial cells
B)  sperm cells; sustentacular cells
C)  secondary spermatocytes; spermatocytes in general
D)  secondary spermatocytes; germ cells
E)  gametes; germ cellsF) None of the above
G) A) and D)

Question 16

Sperm travels along the ductus deferens before reaching the spermatic cord.

Accepted Answer

A) True 
 B)False

Question 17

The gene that codes for the testis-determining factor (TDF)  is found in or on

Accepted Answer

A)  the Y chromosome.
B)  the X chromosome.
C)  the gonadal ridges.
D)  the fetal testes.
E)  the mesonephros.F) B) and D)
G) B) and E)

Question 18

The mechanism that keeps the testes cooler than the body's core temperature is called descent of the
testes.

Accepted Answer

A) True 
 B)False

Question 19

The most important role of meiosis in sexual reproduction is

Accepted Answer

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

Question 20

have 46 chromosomes, whereas have 23.

Accepted Answer

A)  Spermatids; spermatozoa
B)  Primary spermatocytes; spermatids
C)  Secondary spermatocytes; primary spermatocytes
D)  Spermatogonia; primary spermatocytes
E)  Type A spermatogonia; type B spermatogoniaF) A) and B)
G) A) and C)

Exam 27: The Male Reproductive System

Sexual reproduction entails the union of two gonads to form a zygote.

Correct AnswerverifiedShow Answer

Sperm travels along the ductus deferens before reaching the spermatic cord.

Correct AnswerverifiedShow Answer

Testosterone inhibits

Correct AnswerverifiedShow Answer

The gene that codes for the testis-determining factor (TDF) is found in or on

Correct AnswerverifiedShow Answer

Heart rate, blood pressure, and respiratory rate peak during the

Correct AnswerverifiedShow Answer

The orgasm-emission phase of the male sexual response is stimulated by

Correct AnswerverifiedShow Answer

determine/s whether an organism will be genetically male or female.

Correct AnswerverifiedShow Answer

All of the following play a role in thermoregulation of the testes except

Correct AnswerverifiedShow Answer

have 46 chromosomes, whereas have 23.

Correct AnswerverifiedShow Answer

Men have only one but have two of all the rest of these.

Correct AnswerverifiedShow Answer

The mechanism that keeps the testes cooler than the body's core temperature is called descent of the testes.

Correct AnswerverifiedShow Answer

Which of the following is a secondary sex organ?

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

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Which of the following is an androgen?

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Sperm make up just 10% of semen volume.

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As a result of spermatogenesis and spermiogenesis, the final cells produced are called , but they and all the stages leading up to them can be called .

Correct AnswerverifiedShow Answer

The most important role of meiosis in sexual reproduction is

Correct AnswerverifiedShow Answer

is/are generally accepted as a secondary sex characteristic.

Correct AnswerverifiedShow Answer

The penis is homologous to

Correct AnswerverifiedShow Answer

Myotonia of skeletal muscles is characteristic of the excitement phase and refractory period.

Correct AnswerverifiedShow Answer

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