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17 Cards in this Set
- Front
- Back
Obturator Internus (O)
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anterolateral wall of true pelvis
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Obturator Internus (IS)
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medial surface of great trochanter of femur
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Obturator Internus (IV)
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nerve to obturator internus L5, S1
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Obturator Internus (F)
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lateral rotation of the extended hip joint; abduction of flexed hip
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Piriformis (O)
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anterior surface of sacrum between anterior sacral foramina
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Piriformis (IS)
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medial side of superior border of greater trochanter of femur
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Piriformis (IV)
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branches from L5, S1, and S2
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Piriformis (F)
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lateral rotation of the extended hip joint, abduction of flexed hip
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Levator Ani (O)
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posterior aspect of pubic bone, extend across obturator internus as tendinous arch, to ischial spine
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Levator Ani (IS)
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superior perineal membrane, posterior part to perineal body around anal canal and anococcygeal ligament
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Levator Ani (IV)
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ant ramus of S4 and inferior rectal branch of pudendal nerve
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Levator Ani (F)
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pelvic floor, reinforces anal sphincter, creates vaginal sphincter
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Coccygeus (O)
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ischial spine and pelvic surface of sacrospinous ligament
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Coccygeus (IS)
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lateral margin of coccyx ad related border of sacrum
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Coccygeus (IV)
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branches from ant rami of S3 and S4
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Coccygeus (F)
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pelvic floor; pulls coccyx forward after defamation
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Function of Pelvis and Perineum
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1. supports the body
2. locomotion 3. houses digestive, urinary, and reproductive structures 4. transmits nervous and vascular structures 5. anchors external genitalia |