A chestnut-shaped body, surrounding the beginning of the urethra in the male, that consists of two lateral lobes connected anteriorly by an isthmus and posteriorly by a middle lobe lying above and between the ejaculatory ducts. In structure, the prostate consists of 30 to 50 compound tubuloalveolar glands between which is abundant stroma consisting of collagen and elastic fibers and many smooth muscle bundles. The secretion of the glands is a milky fluid that is discharged by excretory ducts into the prostatic urethra at the time of the emission of semen.prostata [NA], glandula prostatica, prostate gland;
female p. term sometimes applied to the periurethral glands in the upper part of the urethra in the female.
Browse Medical References: