Prostate
Prostate
The prostate is an accessory gland of the male reproductive system and a muscle-driven mechanical switch between urination and ejaculation. It is found in all male mammals. It differs between species anatomically, chemically, and physiologically. Anatomically, the prostate is found below the bladder, with the urethra passing through it. It is described in gross anatomy as consisting of lobes and in microanatomy by zone. It is surrounded by an elastic, fibromuscular capsule and contains glandular and connective tissue.
Prostate
Disorders of the prostate include enlargement, inflammation, infection, and cancer. The word prostate is derived from Ancient Greek prostátēs (προστάτης), meaning "one who stands before", "protector", "guardian", with the term originally used to describe the seminal vesicles.
Structure
The internal structure of the prostate has been described using both lobes and zones. Because of the variation in descriptions and definitions of lobes, the zone classification is used more predominantly.
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