JACOPIN / SCIENCE PHOTO LIBRARY JACOPIN / SCIENCE PHOTO LIBRARY
MALE GENITAL SYSTEM, DRAWING The male reproductive system. Illustration of a cross-section of the male genitalia. The penis is made up of three columns of erectile tissue, the two corpora cavernosa and the corpus spongiosum, traversed by the urethra. Located behind the penis are the testicles and above them, the epididymis. The vas deferens are two ducts that pass over and behind the bladder and in front of the seminal vesicle, becoming the ejaculatory ducts which connect to the urethra inside the prostate gland.
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