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5 Cards in this Set
- Front
- Back
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What are the two origins of the iliocostalis muscle?
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1) Posterior iliac crest
2) Posterior suface of sacrum |
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What is the insertion of the iliocostalis muscle?
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(Lumborum, thoracis, cervicis): fibers run superiorly to angles of lower ribs and cervical transverse processes
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What innervates the iliocostalis muscle?
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dorsal primary rami of spinal nerves C4-S5
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What four arteries supply the iliocostalis muscle?
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Segmentally: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.
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What are the main actions of the iliocostalis muscle?
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extends and laterally bends both the trunk and neck
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