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What structures form the pelvic brim?
- Sacral Promontory
- Ala of Sacrum
- Arcuate lines of ilium
- Pectineal lines of pubic
- pubic tubercles
- pubic crests
- pubic symphysis
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What is the true and false pelvis?
- True = below pelvic brim
- False = above pelvic brim
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What are the difference between male and female pelvis?
- Subpubic angle
- male = more acute
- Female = < 90 degrees
- Shape of inlet
- male = heart
- female = oval
- Ischial spines
- male = inverted
- female = everted
- Sciatic notch
- male = J-shaped
- female = L-shaped
- Obturator Foramen
- male = oval
- female = triangular
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What bones contribute to the acetabulum and what percent do they contribute?
- Posterior = Ischium 2/5
- Superior = Ilium 2/5
- Inferior = Pubis 1/5
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What structures pass through the greater sciatic foramen?
- Piriformis (seperates superior and inferior)
- Above piriformis = Superior gluteal artery, nerve, and vein
- Below piriformis = Sciatic nerve, Inferior gluteal nerve, artery, and vein
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What structures pass through the lesser sciatic foramen?
Tendon of obturator internus
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What is piriformis syndrome?
Spasam of the piriformis causes pressure on sciatic nerve
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What is the pattern of blood supply to the head of the femur?
- Blood supply is poor
- provided by medial circumflex femoral artery
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What is the location of the intertrochanteric line and crest?
- Line = anterior
- Crest = posterior
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What bones make up the pelvis?
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The ASIS is in the same verticle plane as what other structure?
Pubic tubercle
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The pubic tubercle is on the same horizontal plane as what other structure?
coccyx
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what forms the posterioinferior part of the hip bone?
Ischium
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What are the two main collateral nerves of the lubosacral plexus?
- superior gluteal nerve
- Inferior gluteal nerve
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What type of patient most often has a femoral fracture?
Elderly women with osteoporosis
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