Tail of Epididymis

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Jun 19, 2015

The tail of the epididymis is the end of 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.