Exam 45: Male Reproductive System

Which of the following is not true of interstitial cells?

The seminal vesicle secretes about 35% of the semen volume.

Which structure is not found in the scrotum?

The major function of the reproductive system is propagation of the species.

Functional sterility results when the sperm count per milliliter falls below _____ million.

Explain the difference between sexual and asexual reproduction. What effect does this have on the offspring and what advantage does sexual reproduction have in regard to survival of the offspring?

The dense, white, fibrous capsule that encases each testis is called the:

Which of the following divides the testes into lobules?

The perineum is a supporting structure of the male reproductive system.

In a vasectomy, the vas afferens is cut so the sperm cannot reach the ejaculatory duct.

Secretions from the seminal vesicles contribute about 60% of the seminal fluid volume.

Testosterone promotes bone growth and closure of the epiphyses.

The tail of a sperm appears to be a typical flagellum.

Filling of the erectile tissue in the penis is necessary for coitus to occur.

The vas deferens acts as a storage area and a conduction pathway for sperm.

A line drawn between the ischial tuberosities divides the perineum into the larger anal triangle and the smaller urogenital triangle.

Testes are small ovoid glands that measure about 4 to 5 cm in length.

The opening of the urethra at the tip of the glans is called the:

The male perineum extends from the pubis anteriorly to what structure posteriorly?

Define the term vasectomy. What does this procedure accomplish?