GUNILLA ELAM / SCIENCE PHOTO LIBRARY GUNILLA ELAM / SCIENCE PHOTO LIBRARY
Bladder, prostate gland and seminal vesicles. Illustration of a sectioned side view of three organs of the male urinary and genital systems. At lower centre is the prostate gland, located at the base of the urinary bladder (upper centre). The prostate gland encloses the urethra, through which urine passes from the bladder through the penis (not shown). The prostate gland secretes a fluid that forms part of the semen produced during ejaculation. Additional fluids for the semen are produced by the seminal vesicles (one shown at centre right).
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