Ch%2027%20Male%20Reproduction%20Lecture%20Presentation%20Fall%2c%202011-1

Ch202720male20reproduction20lecture20presentation20fal

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Unformatted text preview: Chapter 27 Chapter 27 The Reproductive System Reproductive System Reproductive System Primary sex organs (gonads) – testes in males, ovaries in females Gonads produce sex cells called gametes and secrete sex hormones Accessory reproductive organs – ducts, glands, and external genitalia Sex hormones –androgens (males), and estrogen and progesterone (females) Reproductive System Reproductive System Sex hormones play roles in: The development and function of the reproductive organs Sexual behavior and drives The growth and development of many other organs and tissues Male Reproductive System Male Reproductive System The male gonads (testes) produce testosterone and lie within the scrotum Sperm are delivered to the exterior through a system of ducts: epididymis, ductus deferens, ejaculatory duct, and the urethra Accessory sex glands: Empty their secretions into the ducts during ejaculation Include the ______ vesicles, _______ gland, and ________ glands Male Reproductive System Male Reproductive System Figure 27.1 Testis and ducts Ejaculatory duct Vas deferens urethra Epididymis testis Accessory glands Seminal vesicle prostate Bulbourethral gland The Scrotum The Scrotum Sac of skin and superficial fascia that hangs outside the abdominopelvic cavity at the root of the penis Contains paired testicles separated by a midline septum Its external positioning keeps the testes 3°C ______ than core body temperature (needed for sperm production) Testes protection ­ Testicu...
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