ANT 2301 Lecture Notes - Lecture 4: Vas Deferens, Scrotum, Bulbourethral Gland

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Be able to id the diff parts of the anatomy. Reflex in response to any stimulation perceived as sexual. Nerve fibers swell in penis arteries of penis, allow blood to flood spongy bodies. Penis returns to flaccid state when arteries constrict and pressure on veins is relaxed. Hangs loosely at root of penis, holding two testes. Skin of scrotum varies in appearance under diff conditions. Seminal vesicles- two lil strucs that contribute abt 70% of seminal vol. Cowpers gland (aka bulbourethral)- two pea-sized strucs that secrete an alkaline fluid to clean the urethra prior to orgasm: one reason withdrawal isn"t reliable. Flaccid length doesn"t predict erect size (masters and johnson) Shoe size and penile length have no correlation. Why size generally doesn"t matter: the vagina is elastic, nerve endings are in the introitus (first inch or so of the vagina, clitoris is key in orgasm, sex positions affect depth of penetration, sex is more than anatomy.

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