Arrange the four structures listed below into the order in which sperm pass from the testis to the external urethral orifice.
1) ductus deferens
2) urethra
3) ejaculatory duct
4) epididymis
A) 1, 3, 4, 2
B) 4, 3, 1, 2
C) 4, 1, 2, 3
D) 4, 1, 3, 2
E) 1, 4, 3, 2

Question

Quizplus · Accepted Answer

Sperm pass from the testis into the epididymis (4), then into the ductus deferens (1), where they join with seminal fluid from the seminal vesicles and the prostate gland to form the ejaculate. Next, the ejaculate passes through the ejaculatory duct (3) before finally exiting the body through the urethra (2). The correct order is 4, 1, 3, 2.

Arrange the Four Structures Listed Below into the Order in Which