Epididymis

The epididymis (plural, epidymides) is a tightly coiled, thread-like tube that is about six meters long. This tube is connected to ducts inside the testis. The head emerges from the top of the testis, descends along the outer surface, and then moves upward to become the vas deferens at its tail. The inner lining of the epididymis is made of columnar cells that are thought to secrete glycogen, which helps keep stored sperm cells alive. When the immature sperm cells move from the ducts of the...

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Anatomy Terms

Aberrant Ductule
Body of Epididymis
Ductus Deferens
Efferent Ductules
Epididymis
Glans of Penis
Head of Epididymis
Mature Sperm
Navicular Fossa
Prostate
Rete Testis
Seminal Vesicle
Seminiferous Tubules
Sertoli Cells
Spermatid
Spermatogonium
Tail of Epididymis
Testes
Urinary Bladder

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Full Epididymis Description

[Continued from above] . . . testis into the epididymis, they are completely immobile and unable to fertilize an egg cell. As they travel slowly through the epididymis as a result of rhythmic contractions, they undergo maturation and become capable of moving independently so that they may engage in swimming motions after ejaculation.