IN PROGRESS - Reproductive System (Poll Ev. Questions)

Question 1

The path of the sperm through the male reproductive system is: testis ->

A. seminal vesicle -> vas deferens -> ureter
B. epididymis -> vas deferens -> urethra
C. prostate -> seminal vesicle -> epididymis
D. vas deferens -> epididymis -> seminal vesicle

Answer 1

B. epididymis -> vas deferens -> urethra

Epididymis is the first part of the duct. It is larger and “sits” on the testis.
The vas (ductus) deferens is the long aspect of the duct that continues from the epididymis, wraps around the bladder, and then joins with the urethra.

Question 2

The blood-testis barrier is located between the ______.

A. Capillary endothelium and seminiferous tubule
B. Primary spermatocytes and secondary spermatocytes
C. Spermatogonia and the primary spermatocytes
D. Secondary spermatocytes and spermatids

Answer 2

C. Spermatogonia and the primary spermatocytes

The spermatogonium cell gives rise to the primary spermatocyte. The blood-testis barrier separates the two. It is a dynamic barrier that can “open and close” as needed so the primary spermatocyte can move toward the lumen.