ch 25, practice quiz (male reproductive system)

Tubules that connect testicular lobules with the efferent ductules of the epididymis.

rete testis

The seminal vesicles?

volume of the semen

Involuntary contraction of this smooth muscle layer wrinkles and thickens the walls of the scrotum to prevent heat loss.

dartos muscle

Tubular organ that is transected during a vasectomy.

ductus deferens

Sperm become motile in the?

epididymis

A hydrocele?

excess serous fluid in the scrotum

Which of the following events occurs when the testes do not descend before birth?

Viable sperm will not be produced

Type of cell in the testes that produces testosterone.

interstitial or Leydig

All of the following are located within the spermatic cord except the?

superficial inguinal ring

All of the following are adaptations for keeping the testes cool except the?

testicular artery

Which of the following is the primary sex organ in the male?

testis

The acrosomal reaction occurs?

just before fertilization

The typical (diploid) cells of the body have 46 chromosomes; how many chromosomes does each gamete have?

23

By undergoing meiosis, each primary spermatocyte ultimately gives rise to how many sperm cells?

4

Erection is caused by?

blood

The function of the cremaster muscle is to?

alter the position of the testes

The correct sequence of sperm-transporting tubules that transport spermatozoa to the epididymis is the?

ssre