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Muscle Os and Is
Back and arm
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 |