| 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 |
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