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The Reproductive Syste8 - The Reproductive System...

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The Reproductive System - Reproductive system becomes fully active during puberty - Primary Sex Organs ( Gonads ): testes in males & ovaries in females o Gonads produce gametes & secrete sex hormones Testes produce sperm through spermatogenesis Ovaries produce ova through oogenesis - Accessory Reproductive Organs: ducts, glands & external genitalia Anatomy of the Male Reproductive System Testes : lie within scrotum; produce male gametes (sperm) - scrotum : sac of skin & superficial fascia that houses testes in left & right compartments o temperature of scrotum must be ~ 3 ° C lower than core body temperature for production of viable sperm o temperature maintained by contraction & relaxation of dartos & cremaster muscles… contraction pulls scrotum closer to body, increasing temperature, while relaxation allows scrotum to assume a lower position, decreasing temperature - each testis is surrounded by 2 tunics: outer tunica vaginalis formed from peritoneum & inner tunica albuginea, formed from fibrous CT
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