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2015-07-18T21:07:27+08:00
2015-07-18T23:57:26+08:00

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Sperm are produced, stored, and delivered by the male reproductive system. The male reproductive system includes the testes, urethra, vas deferens, prostate gland, seminal vesicle, and penis. The testes contain coiled structures called seminiferous tubules, which are the sites of sperm production.

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