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Muscles of the Posterior Abdominal Wall

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Question
Answer
Psoas major origin   transverse processes of lumbar vertebrae  
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Psoas major insertion   lesser trochanter of femur  
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Iliacus origin   lateral of inferior portion of psoas major  
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Iliacus insertion   iliac fossa, lesser trochanter of femur and joins with psoas tendon  
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Quadratus lumborum origin   transverse processes of lumbar vertebra and 12th rib  
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Quadratus lumborum insertion   iliolumbar ligament and iliac crest  
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Psoas major innervation   lumbar plexus  
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Iliacus innervation   femoral nerve  
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Quadratus lumborum innervation   ventral branches of T12-L4  
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Psoas major action   flexion of thigh, lateral flexor of vertebral column  
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Iliacus action   flexion of thigh, stabilization of hip joint  
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Quadratus lumborum action   extensor of vertebral column, lateral flexor of vertebral column  
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Created by: hoffman784
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