Exam 45: Male Reproductive System

The rete testis is drained by the efferent ductules into the vas deferens.

The PSA test is used to detect testicular cancer before a lump can be felt.

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

Each testis is encased by a white fibrous capsule called the tunica albuginea.

Which of the following cells contain 46 chromosomes?

Millions of sperm are required for a man to be considered fertile.

What is cryptorchidism? Explain the potential effect of it when not corrected.

Describe the structure and function of the sustentacular cells.

Each of the following is a duct in the male reproductive system except:

The greatest percentage of seminal fluid volume is secreted in the seminal vesicles.

Which of the following ducts are not paired?

When baby Steven was born, the pediatrician discovered that Steven's left testicle had not descended into the scrotum. If the situation is not corrected soon, might the baby be sterile or impotent, and why or why not?

The tight junctions of the blood-testes barrier prevent the autoimmune reaction against sperm cells.

Sertoli cells form tight junctions that divide the wall of the seminiferous tubule into four compartments.

Which of the following is not an effect of testosterone?

Androgenic hormones are masculinizing hormones.

Each testis is divided into 50 or 60 cone-shaped lobules.

The testes have two functions: spermatogenesis and the secretion of hormones.

The main factor determining male fertility is the:

The epididymis is an extension of the tail of the vas deferens.