✅MALE REPRO WILEY

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A

In hot weather, the testes are protected from the heat by

A. relaxation of the dartos muscle.

B. relaxation of the dartos muscle and contraction of the cremaster muscle are both correct.

C. contraction of the cremaster muscle.

D. movement to the outside of the pelvic cavity.

E. relaxation of the dartos muscle, contraction of the cremaster muscle, and movement to the outside of the pelvic cavity are all correct.

FALSE

TRUE OR FALSE: he acrosome of a sperm contains the mitochondria needed for ATP production

C

Which of the following correctly traces a sperm from its formation to ejaculation? (Note: not all structures are listed)

A. straight tubules, rete testes, seminiferous tubules, epididymis, ductus deferens, ejaculatory duct

B. straight tubules, rete testes, epididymis, seminiferous tubules, ductus deferens, ejaculatory duct

C. seminiferous tubules, straight tubules, rete testes, epididymis, ductus deferens, ejaculatory duct

D. seminiferous tubules, rete testes, epididymis, straight tubules, ductus deferens, ejaculatory duct

E. seminiferous tubules, rete testes, straight tubules, epididymis, ductus deferens, ejaculatory duct

B

Which of the following statements is INCORRECT?

A. Location of the scrotum and contraction of muscle fibers regulate the testis temperature.

B. Normal sperm production requires a temperature 2 to 3 degrees C above body core temperature.

C. Proper temperature is maintained within the scrotum because it is outside the pelvic cavity.

D. The dartos and cremaster muscles contract in response to cold temperatures forcing the testes closer to the body reducing heat loss.

E. The dartos and cremaster muscles relax when exposed to warmth

TRUE

TRUE OR FALSE: The spermatic cord contains the testicular artery, a vein, nerves, lymphatic vessels and the vas deferens.

TRUE

TRUE OR FALSE: Semen is a mixture of semen and seminal fluid which contains sperm and provides them with a transport medium, nutrients, and protection from the acidic environment of the urethra and vagina

FALSE

TRUE OR FALSE: The testes are the only endocrine tissue that influences male reproductive function

C

GnRH stimulates the release of all of the following hormones except

A. follicle-stimulating hormone.

B. luteinizing hormone.

C. testosterone.

D. none of these.

B

Which structure is the site of sperm production?

A. Vas deferens

B. Seminiferous tubules

C. Albuginea

D. Epididymis

E. Raphe

C

Which of the following cells may eventually become spermatozoa?

A. Sertoli cells

B. Sustentacular cells

C. Spermatogonia

D. Chief cells

E. Speciation cells

A

The function of the epididymis is

A. Sperm maturation

B. Produce sperm

C. Spermatid storage

D. Provide nutrition to sperm

E. Absorption of calcium

D

Which structure is formed by the union of the duct from the seminal vesicle and the ampulla of the vas deferens?

A. Urethra

B. Spermatic cord

C. Inguinal canal

D. Ejaculatory duct

E. Prostate

C

Which structure lies posterior to the bladder and anterior to the rectum and secretes an alkaline, fructose filled fluid?

A. Prostate

B. bulbourethral gland

C. Seminal vesicles

D. Spongy urethra

E. Prostatic urethra

D

Which structure is composed of three cylindrical masses of erectile tissue each surrounded by a fibrous tissue?

A. Testes

B. Prostate

C. Bladder

D. Penis

E. Urethra

A

The prostate secretes all of the following EXCEPT

A. sperm.

B. citric acid.

C. proteolytic enzymes.

D. acid phosphatase.

E. seminalplasmin.

B

During erection and ejaculation, the corpus spongiosum penis

A. is comprised of two dorsolateral masses.

B. helps keep the spongy urethra open.

C. contracts to prevent semen from entering the bladder.

D. undergoes peristaltic contractions.

E. helps supply lubricating fluid.

B

Testicular temperature control is accomplished through the actions of the

A. corpora cavernosum penis and corpora spongiosum penis.

B. dartos and cremaster muscles.

C. tunica vaginalis and tunica albuginea.

D. corpora cavernosum penis and corpora spongiosum penis and dartos and cremaster muscles are correct.

E. corpora cavernosum penis and corpora spongiosum penis, dartos and cremaster muscles, and tunica vaginalis and tunica albuginea are correct

B

The duct of each seminal vesicle fuses with the

A. ejaculatory duct

B. ampulla of the vas deferens

C. the ducts of the prostate and bulbourethral glands

D. urethra

E. epididymis