Through which of the following do sperm cells travel to reach the urethra? epididymis vas deferens penis testes

 Vas deferens

Explanation:

The vas deferens are the part of the male reproductive system which is also also called as the ductus deferens. The function of the vas deferens is to carry the sperms present and produced by the testes to the ejaculatory duct or urethra, where the sperms mixed with the other components of the seminal fluid and liberated by the penis during copulation to facilitate fertilization.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.