Internal male reproductive organs

These include the Epididymis, Vas Deferens, Ejaculatory ducts, Seminal vesicle, Urethra, Prostate gland and Bulbourethral glands.

Epididymis

Each epididymis is a tightly coiled, thread-like tube that is approximately 6 meters long. This tube is connected to the ducts within rete testis. The Epididymis covers the top of the testis, runs down the posterior surface of the testis, and then courses upward to form the Vas Deferens.

The epididymis secretes the hormone glycogen, which helps sustain the lives of stored sperm cells and promotes their maturation. The immature sperm cells mature and become mobile. Once the sperm cells are mature, they leave the epididymis and enter the Vas Deferens.

Vas Deferens

This a small tube that connects the epididymis and ejaculatory duct. It ascends as part of the spermatic cord through the inguinal canal of the lower abdominal wall into the pelvic cavity, and transmits the sperm to the ejaculatory ducts.

Ejaculatory Ducts

The Vas Deferens and the Seminal Vesicles converge, just before the entrance of the Prostate gland, to form the Ejaculatory ducts, which open into the Prostatic Urethra. Its function is to convey the sperm cells to the Urethra.

Seminal Vesicles

Thes are two pouches that are attached to the Vas Deferens near the base of the urinary bladder. The lining of the inner