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Chest/Shoulder/upper
| Term | Definition |
|---|---|
| Brachialis Origin | Distal lateral end of humerous |
| Brachialis Action | Flexes Elbow |
| Coracobrachialis Origin | Coracoid process of scapula |
| Coracobrachialis Action | Flexes an adducts the arm |
| Deltoid Origin | Acromion and spine of the scapula and the clavicle |
| Deltoid Action | Abducts, extends, and flexes arm |
| Flexor carpi ulnaris Origin | Flexes wrist and abducts hand |
| Infraspinatus Action | Rotates arm laterally |
| Infraspinatus Origin | Inffraspinous fossa of scapula |
| Pectoralis major Origin | Clavicle sternum and costal cartilages of upper ribs |
| Pectoralis major Action | flexes adducts and rotates arm medially |
| Pectoralis minor Origin | Sternal ends of ribs 3-5 |
| Pectoralis minor Action | Pulls scapula forward and downward; raises ribs |
| Serratus anterior Origin | Lateral surfaces of most ribs |
| Serratus anterior Action | Pulls scapula anteriorly (protracts scapula) |
| Teres major Origin | Lateral border of scapula |
| Teres major Action | Extends, adducts and rotates arm medially |
| Triceps brachii Action | Extends elbow |
| Triceps brachii Origin | lateral and medial surfaces of humerus |
| Biceps brachii Action | Flexes elbow and supinates forearm and hand |
| Trapezuis Action | Rotates scapula; various fibers raise scapula, pull scapula medially, or pull scapula and shoulder downward |
| Latissimus dorsi Action | Extends, adducts, and rotates the arm medially |
| Latissimus dorsi Origin | spinous processes of lumbar and lower thoracic vertebrae, illiac crest, and lower ribs |