pelvis, inferior to the bladder, where it surrounds the prostatic part of the urethra. It consists of 30 to 50 tubuloalve-olar glands arranged in three concentric layers: an inner mucosal layer, an intermediate submucosal layer, and a peripheral layer containing the main prostatic glands (Fig. 21.27). The glands of the mucosal layer secrete directly into the urethra; the other two layers have ducts that open into the prostatic sinuses located on either side of the urethral crest on the posterior wall of the urethra.
The adult prostatic parenchyma is divided into four anatomically and clinically distinct zones:
The prostate, the largest accessory sex gland, is divided into several morphologic and functional zones
The prostate is the largest accessory sex gland of the male reproductive system. Its size and shape are commonly compared to those of a walnut. The gland is located in the
The peripheral zone corresponds to the main prostatic glands and constitutes 70% of the glandular tissue of the prostate. This zone is the most susceptible to inflammation. It is also the site of most prostatic carcinomas. The peripheral zone is palpable during digital examination of the rectum.
ductus deferens m
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