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4 Cards in this Set

  • Front
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Ischiocavernosus
Orgin: Ischial tuberosity and ischial and pubic rami
Insertion: Corpus cavernosum of penis in male and clitoris in female
Action: Maintains erection of penis in male and clitoris in female
External Anal Sphincter
Orgin: Anococcygeal raphe
Insertion: Central tendon of perineum
Action: Keeps anal canal orifice closed
Bulbospongiosus: Male
Orgin: Collagen sheath at base of penis; fibers cross over urethra
Insertion: Median raphe and central tendon of perineum
Action:Compresses base, stiffens penis, ejects urine or semen
Bulbospongiosus: Female
Orgin: Collagen sheath at base of clitoris; fibers run on either side of urethral vaginal openings
Insertion: Central tendon of perineum
Action: Compresses and stiffens clitoris, narrows vaginal opening