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1 Cards in this Set

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  • Back
Erector Spinae:
1. Iliocostalis
2. Longissimus
3. Spinalis
Function:maintain upright posterior, extend back, control flexion of back

Nerve: dorsal rami

Arterial supply: segmentally: deep cervical, intercostal, subcostal, lumbar

Origin:Sacrum, ilium, ribs & lumbar and thoracic

Insertion: 1. Ribs 2. Ribs & transverse processes & mastoid process 3. Spinous processes