| Muscle |
Origin |
Insertion |
| Upper Traps | occipital protuberance, superior nuchal line, nuchal ligament, spinous process of c7 | lateral 1/3 of clavicle |
| Middle Traps | spinous processes of t1-t5 | Acromion process |
| Lower Traps | spinous processes of t6-t12 | spine of scapula |
| Rhomboideus | spinous processes of c7-t5 | medial border of scapula |
| Levator Scapulae | transverse processes of c1-c4 | superior angle |
| Pect Minor | third, fourth, fifth ribs | coracoid process |
| Serratus Anterior | upper 8 or 9 ribs | anterior surface of medial border of the scapula |
| Supraspinatus | supraspinous Fossa | greater tubercle |
| Infraspinatus | infraspinous fossa | greater tubercle |
| teres minor | upper 1/2 of lateral border of scapula | greater tubercle |
| Subscapularis | subscapular fossa | lesser tubercle |
| Anterior Deltoid | lateral 1/3 of clavicle | deltoid tuberosity |
| Middle Deltiod | acromion | deltiod tuberosity |
| Posterior Deltoid | spine of scapula | deltiod tuberosity |
| Pect mj | sternum, clavicle, cartilage of ribs 1-7 | lateral lip of bicipital groove |
| subclavius | sternum to 1st rib | inferior surface of clavicle |
| Latissimus Dorsi | spinous processes of t7-L5, iliac crest, thoracolumbar fascia, lower 3 or 4 ribs | medial lip of bicipital groove |
| Teres mj | lower 1/2 of lateral border of scapula | medial lip of bicipital groove |
| Coracobrachialis | coracoid process | mid-medial humerous |
| Biceps Brachii | long head-supraglenoid tubercle short head- coracoid process | radial tuberosity |
| Brachialis | distal anterior surface of humerus | coronoid process |
| Brachioradialis | lateral supracondylar ridge | styloid process |
| pronator teres | medial epicondyle | lateral surface of radius |
| Supinator | lateral epicondyle | lateral surface of radius |
| Triceps brachii | long head- infraglenoid tubercle LATERAL HEAD- posterior surface of humerus MEDIAL HEAD- posterior surface of humerus | olecranon process |
