Term
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Definition
| transverse processes of lumbar vertebrae; sides of bodies of T12-L5 vertebrae and intervening intervetebral discs |
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Term
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Definition
| strong tendon to lesser trochanter of femur |
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Term
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Definition
| Lumbar plexus via ventral branches of L2-4 |
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Term
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Definition
| acting inferiorly with iliacus, it flexes thigh; acting superiorly it flexes vertebral column laterally; it is used to balance the trunk; when sitting it acts inferiorly with iliacus to flex trunk |
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Term
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Definition
| superior 2/3 of iliac fossa, ala of sacrum, and anterior sacroiliac ligaments |
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Term
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Definition
| lesser trochanter of femur and shaft inferior to it, and to psoas major tendon. |
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Term
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Definition
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Term
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Definition
| flexes thigh and stabilizes hip joint; acts with psoas major |
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Term
| Quadratus Lumborum Origin |
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Definition
| medial half of interior border of 12th rib and tips of lumbar transverse processes. |
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Term
| Quadratus Lumborum Insertion |
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Definition
| Iliolumbar ligament and internal lip of iliac crest |
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Term
| Quadratus Lumborum Innervation |
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Definition
| ventral branches of T12 and L1-4 nerves |
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Term
| Quadratus Lumborum Action |
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Definition
| Extends and laterally flexes vertebral column; fixes 12th rib during inspiration. |
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