NCIt definition : A crescent-like structure located in the upper and posterior surfaces of the testis.
It consists of the efferent ductules and the duct of the epididymis. It facilitates
the maturation of sperm that is produced in the testis.;
Alternative definition : CDISC: A crescent-like structure located adjacent to the testis. It consists of a
single highly coiled duct and is divided into 3 regions: caput (head), corpus (body)
and cauda (tail).; NCI-GLOSS: A narrow, tightly-coiled tube that is attached to each of the testicles
(the male sex glands that produce sperm). Sperm cells (male reproductive cells) move
from the testicles into the epididymis, where they finish maturing and are stored.; UBERON: The elongated structure connected to the posterior surface of the testis that
transports, stores, and matures spermatozoa between testis and vas deferens.;