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

Facilitatethemovementofspermthroughthe

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Unformatted text preview: //www.mastersmensclinic.com/prostate.htm prostate prostate Accessory Glands: Bulbourethral Glands Accessory Glands: Bulbourethral Glands (Cowper’s Glands) Pea­sized glands inferior to the prostate Produce thick, clear mucus prior to ejaculation that neutralizes traces of acidic urine in the urethra Bulbourethral Gland Bulbourethral gland Semen Semen Milky white, sticky mixture of sperm and accessory gland secretions Provides a transport medium and nutrients (_____), protects and activates sperm, and facilitates their movement Prostaglandins in semen: Decrease the viscosity of mucus in the cervix Stimulate reverse ________ in the uterus Facilitate the movement of sperm through the female reproductive tract Semen Semen The hormone relaxin enhances sperm motility The relative alkalinity of semen neutralizes the acid environment found in the male urethra and female vagina Clotting factors coagulate semen immediately after ejaculation, then fibrinolysin liquefies the sticky mass Only 2­5 ml of semen are ejaculated, but it contains 50­130 million sperm/ml Male Sexual Response: Erec...
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