Epididymis (Gr. Epi - Na, Didymos - Testis)

The epididymis is an appendage of the testis, which is a complex convoluted tube in which sperm is stored.

The epididymis is located on the posterior surface of the testis and is about 6 meters long. It consists of a head, body and tail. The head of the epididymis is adjacent to the upper pole of the testis. Here begins the epididymal tube, which bends repeatedly to form the body. In the final section, or tail, the epididymis passes into the vas deferens.

Main functions of the epididymis:

1. Transportation of sperm from the testis to the vas deferens.

2. Maturation and storage of sperm. In the epididymis, sperm acquire the ability to move and fertilize. They can be stored here for about 2 months.

3. Resorption of immature and damaged sperm.

Thus, the epididymis performs the most important functions of maturation, storage and transportation of sperm from the testes to the ducts through which they enter the genitourinary system. Damage to the epididymis can lead to infertility.