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| - SERRATUS ANTERIOR
- | | ORIGIN: |
Upper eight ribs and anterior intercostal membranes from midclavicular line. Lower four interdigitating with external oblique | | INSERTION: | Inner medial border scapula. 1 and 2: upper angle; 3 and 4: length of costal surface ; 5-8: inferior angle
| | ACTION: |
Laterally rotates and protracts scapula
| | NERVE: |
Long thoracic nerve (C5, 6, 7) (from roots) slips from ribs 1 and 2: C5; 3 and 4: C6; 5-8: C7)
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