| A | B |
|---|
| Muscles of Torso | Action |
| Deltoid | abduct upper arm |
| External intercostals | elevate ribs (inspire, inhale) |
| Pectoralis major | Rotate, adduct & flex upper arm |
| Lattisimus Dorsi | Rotate & adduct upper arm |
| Serratus anterior | move scapula anterior and inferior |
| Rhomboid | raises & adducts scapula |
| External oblique | compress abdomen (suck in stomach) |
| Internal oblique | compress abdomen (suck in stomach) |
| Rectus abdominus | compress abdomen (suck in stomach) |
| Transverse abdominus | compress abdomen (suck in stomach) |
