Question

Why does the end of the vas deferens dilate?

(a) To enter the inguinal canal

(b) For temporary storage of sperms

(c) To enter the urinary bladder

(d) For support

I had been asked this question in final exam.

My doubt stems from The Male External Genitalia in section Human Reproduction of Biology – Class 12

Answer 1

The correct choice is (b) For temporary storage of sperms

Best explanation: The vas deferens loops over the urinary bladder where it is joined by duct from the seminal vesicle to form the ejaculatory duct. The end of the vas deferens dilates to form a spindle-like ampulla for temporary storage of sperm.