JACOPIN / BSIP / SCIENCE PHOTO LIBRARY JACOPIN / BSIP / SCIENCE PHOTO LIBRARY
Cross-section illustration of male genital organs. The penis is made up of spongy and cavernous tissue opened down the middle by the urethra. The testicle is topped by the epididymis, then the deferential artery that passes over the bladder, in the front of the seminal vesicle and comes out in the prostate by way of the ejaculatory duct which joins the urethra.
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