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Muscle | Origin | Insertion | Action | Nerve | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Quadratus lumborum | Transerve processes of L3-L5; iliolumbar ligament; iliac crest | Lower border of last rib; transverse processes of L1-L3 | Depresses rib 12; flexes trunk laterally | Subcostal nerve; L1-L3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Psoas major | Transverse processes, intervertebral disks & bodies of T12-L5 | Lesser trochanter | Flexes thigh & trunk, lateral rotation of femur | L2-L3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Psoas minor | Bodies & intervertebral discs of T12-L1 | Pectineal line; iliopentineal eminence | Aids in flexing of trunk | L1 |
(c)Dr. Nikita Vizniak. All Rights ReservedIn order to use these tables as a learning tool, you will need to have JavaScript enabled.