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muscles of body
| Question | Answer |
|---|---|
| Latissimus dorsi | Action - extends arm, adduct arm, medial rotation |
| Trapezius | Action - Retract scapula, elevate scapula, stabilize shoulder |
| Serratus Anterior | Action - Protract Scapula |
| Diaphragm | Action - Flattens to expand thorax - drives inspiration |
| Rectus abdominis | Action - Flex and rotate vertebral column |
| Internal Intercostals | Action - Single, -- elevate inferior rib toward superior rib; as a set -- depress and compress rib cage |
| External intercostals | Action - Single -- depress superior rib toward superior rib; as a set -- depress and compress rib cage |
| External Obliques | Action - Flex vertebral column (both), lateral flexion |
| Internal Obliques | Action - Flex vertebral column (both), lateral flexion (single) |
| Transverse Abdominis | Action - Compress abdominal contents |
| Pectoralis minor | Action - Draw scapula forward and down |
| Pectoralis major | Action - adducts and medially rotates arm (at shoulder) |
| Erector Spinae | Action - Extend vertebral column Found on both sides of the vertebral column |