Search results
Results From The WOW.Com Content Network
The epididymis (/ ɛ p ɪ ˈ d ɪ d ɪ m ɪ s /; pl.: epididymides / ɛ p ɪ d ɪ ˈ d ɪ m ə d iː z / or / ɛ p ɪ ˈ d ɪ d ə m ɪ d iː z /) is an elongated tubular genital organ attached to the posterior side of each one of the two male reproductive glands, the testicles.
The vas deferens (pl.: vasa deferentia), ductus deferens (pl.: ductūs deferentes), or sperm duct is part of the male reproductive system of many vertebrates. In mammals, spermatozoa are produced in the seminiferous tubules and flow into the epididymal duct. The end of the epididymis is connected to the vas deferens.
Ejaculatory duct obstruction is an acquired or congenital pathological condition in which one or both ejaculatory ducts are obstructed. [9] In the case that both ejaculatory ducts are obstructed, this illness presents with the symptoms of aspermia and male infertility .
The epididymis is a long whitish mass of tightly coiled tube. The sperm that are produced in the seminiferous tubules flow into the epididymis. During passage via the epididymis, the sperm undergo maturation and are concentrated by the action of ion channels located on the apical membrane of the epididymis. [2]
Epididymitis is a painful inflammation of the epididymis or epididymides, frequently caused by bacterial infection but sometimes of unknown origin. Anorchia is the absence of one or both testicles. Cryptorchidism , or "undescended testicles", is when the testicle does not descend into the scrotum of an infant boy.
In humans and other large mammals, there are approximately 15 to 20 efferent ducts, which also occupy nearly one-third of the head of the epididymis. b) single entry, as seen in most small animals such as rodents, whereby the 3–6 ductules merge into a single small ductule before entering the epididymis. [citation needed]
A 2015 systematic review of 15,521 men in which the subjects were measured by health professionals showed that the average length of an erect human penis is 13.12 cm (5.17 inches) long, while the average circumference of an erect human penis is 11.66 cm (4.59 inches).
The incidence of spermatoceles increases as men age. [12] Before puberty, children from the male sex may develop a similar benign mass called epididymis cyst. Although both epididymis cyst and spermatocele may be referred as the same, the epididymis cyst does not contain sperm and it can occur anywhere within the epididymis.