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Midterm
random muscles
| Deltoid | Triceps Brachii | Latissimus Dorsi | Supraspinatus | Infraspinatus | Teres Minor | Subscapularis |
|---|---|---|---|---|---|---|
| Action: All fibers: Abduct the shoulder, Anterior fibers: Flex the shoulder, Medially rotate the shoulder, Horizontally adduct the shoulder, Posterior Fibers: Extend the shoulder, Laterally rotate the shoulder, Horizontally abduct the shoulder | Action: All heads: Extend the elbow, Long head: Extend the shoulder, Adduct the shoulder | Action: Extend the shoulder, Adduct the shoulder, Medially rotate the shoulder | Action: Abduct the shoulder, Stabilize the head of humerus in glenoid cavity | Action: Laterally rotate the shoulder, Adduct the shoulder, Extend the shoulder, Horizontally abduct the shoulder, Stabilize head of humerus in glenoid cavity | Action: Laterally rotate the shoulder, Adduct the shoulder, Extend the shoulder, Horizontally abduct the shoulder, Stabilize head of humerus in glenoid cavity | Action: Medially rotate the shoulder, Stabilize head of humerus in glenoid cavity |
| Origin: Lateral one-third of clavicle, acromion, and spine of scapula | Origin: Long head: Infraglenoid tubercle of the scapula, Lateral head: Posterior surface of proximal half of the humerus, Medial head: Posterior surface of distal half of the humerus | Origin: Spinous processes of last six thoracic vertebrae, last three or four ribs, thoracolumbar aponeurosis and posterior iliac crest | Origin: Suprapinous fossa of the scapula | Origin: Infraspinous fossa of the scapula | Origin: Superior half of lateral border of the scapula | Origin: Subscapular fossa of the scapula |
| Insertion: Deltoid tuberosity | Insertion: Olecranon process of the ulna | Insertion: Crest of the lesser tubercle of the humerus | Insertion: Greater tubercle of the humerus | Insertion: Greater tubercle of the humerus | Insertion: Greater tubercle of the humerus | Insertion: Lesser tubercle of the humerus |
Created by:
wolfwillow
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