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13 Cards in this Set
- Front
- Back
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What is Ferguson's angle?
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Angle between sacrum and lumbar, typically 35 degrees
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What are the 3 true + 3 accessory ligaments?
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true - anterior sacroiliac ligament, interosseous sacroiliac ligament, posterior sacroiliac ligament. Accessory- sacrotuberous, sacrospinous, iliolumbar
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Where do the accessory ligaments connect?
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Iliolumbar: iliac crest/sacral base to L4+L5 (prone to irritation)
Sacrotuberous: infrior sacral border to ischial tuberosities Sacrospinous: sacrotuberous ligament to ischial spine (forms greater and lesser sciatic foramen) |
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What is batwing deformity?
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complete fusion of L5 with S1
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what autonomics innervate the pelivc viscera?
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the distal 1/3 of the transverse colon trough the rectum and lower urogenital system EXCLUDING gonads. Symp = T12- L2, parasymp = S2-S4
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What muscles/ ligaments are on the posterior aspect of the sacrum?
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Muscles- gluteus maximus, longissimus thoracis, iliocostalis lumborum, multifidus, and Ligaments- sacroiliac, post. sacrococcygeus
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What muscles/ ligaments are on the anterior aspect of the sacrum?
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Muscles- iliacus, piriformis, coccygeus, ligaments- sacrospinous, sacrotuberous, ant. sacrococcygeus, anterior sacroiliac
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What are the levator ani muscles of the pelvic floor?
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Levator prostatae, puborectalis, pubococcygeous, iliococcygeus
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The dura attaches from the foramen magnum to where?
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S2
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What are neutral mechanics?
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L rotation on L oblique axis, forward torsion (sacrum rotates in SAME direction as obliqe axis)
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What are non neutral mechanics?
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R rotation on L oblique axis, backward torsion (sacrum rotates in OPPOSITE direction as oblique axis)
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Describe the stance phase of walking
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limb contacts ground, 60% of walking cycle, 20% of the 60% is in double stance
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What happens during walking?
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SB of lumbar spine toward side of weight bearing leg, ant rot of weight bearing ilium + post. rot of opposite ilieum (forms L oblique axis when R foot forward, forms R oblique axis when L foot forward)
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