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Article: testis
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- The Mosby Medical Encyclopedia
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The Mosby Medical Encyclopedia
10-01-1996
testis
testicle
/tes'tis/, pl. testes, one of the pair of male gonads that produce semen. The adult testes are suspended in the scrotum by the spermatic cords. In early fetal life they are within the abdominal cavity behind the lining (peritoneum). Before birth they normally lower into the scrotum. Each testis is an oval body about 4 cm long, 2.5 cm wide. It weighs about 12 g. The ducts in which the sperm is stored (epididymic) are located on the back of the testis. They are about 20 feet long and connect with the vas deferens through which sperm pass during ...