Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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

Question 4

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) B) and C)
G) A) and C)

Question 5

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

Question 6

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 E)
G) All of the above

Question 7

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) D) and E)
G) C) and D)

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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) D) and E)
G) C) and E)

Question 10

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

Question 11

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 E)
G) C) and D)

Question 12

Sperm make up just 10% of semen volume.

Accepted Answer

A) True 
 B)False

Question 13

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) B) and E)
G) D) and E)

Question 14

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) C) and E)
G) A) and E)

Question 15

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 D)
G) None of the above

Question 16

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 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) A) and B)
G) A) and C)

Question 18

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 D)
G) B) and E)

Question 19

The penis is homologous to

Accepted Answer

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

Question 20

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 C)

Exam 27: The Male Reproductive System

Which of the following is an androgen?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

have 46 chromosomes, whereas have 23.

Correct AnswerverifiedShow Answer

The most important role of meiosis in sexual reproduction is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

is/are generally accepted as a secondary sex characteristic.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The penis is homologous to

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is a secondary sex organ?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Sperm make up just 10% of semen volume.

Correct AnswerverifiedShow Answer

Testosterone inhibits

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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