The Male Reproductive System

The testes of the male are enclosed in two separate scrotal sacs suspended outside the body. The structure of the male reproductive tract is diagrammed in Fig. 1. Within the testes are coiled loops of seminiferous tubules where spermatogenesis takes place. These tubules eventually drain into the epididymis, which is a storage and maturation area for spermatozoa. During copulation, the spermato-

zoa are carried from the epididymis via the vas deferens and the ejacu-latory duct and emitted through the penis.

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