THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Mature sperm begin their journey by travelling from the epididymis to the vas deferens, which propels sperm forward with smooth muscle contractions. The sperm arrive first at the ampulla just above the prostate gland. Here, secretions from the seminal vesicle located next to the ampulla are added.

Detailed explanation-2: -The epididymis is the tube which moves the sperm from the testicles. Vas deferens. This is a tube in which the sperm is stored and it carries the sperm out of the scrotal sac. The vas deferens is between the epididymis and the urethra and connects these together.

Detailed explanation-3: -When a vasectomy is performed, each vas deferens is cut and cauterized (sometimes sutured closed) to prevent sperm from leaving the epididymis (figure 1). This way, no sperm are expelled from the penis at the time of ejaculation. (See “Vasectomy".)

Detailed explanation-4: -Sperm then travels through the deferent duct through up the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder. Here, the vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate and empties into the urethra.