Upper Extremity Flashcards
Flexes and adducts arm
Pectoralis mj
O: clavicle, sternum, ribs 1-6
I: humerus
Pulls scapula medically
Rhomboids
O: spinous process of C7-T3
I: medial border of scapula
Abducts humerus
Deltoid
O: clavicle, acromion and spine of scapula
I: deltoid tuberosity
Extend, rotate, abducts humerus
Teres mj
O: scapula
I: humerus
Rotate humerus
Teres minor
O: scapula
I: humerus
Abduct humerus
Supraspinatus
O: supraspinous fossa
I: humerus
Rotate humerus (s)
Subscapularis
O: sub scapular fossa
I: humerus
Extends head, moves scapula
Trapezius
O: occipital bone, spinous process c7-t12
I: scapular spine and acromion
Extend, adduct and rotate arm
Latissimus dorsi
O: spinous process t6-l5
I: humerus
Forearm extension
Triceps brachii
O: glenoid cavity, radial groove of humerus
I:olecranon process of ulna
Flexing of elbow and supination of forearm
Biceps brachii
O: coracoid process
I: radial tuberosity
Synergist of elbow flexion
Brachioradialis
O: humerus
I: styloid process of radius
Flexor of elbow
Brachialis
O: humerus
I: coronoid process
Adduction and flexion of shoulder
Coracobrachialis
O: coracoid process
I: shaft of humerus
Pronation of forearm
Pronator teres
O: epicondyle of humerus, coronoid process of ulna
I: radius
Flexor of wrist
Flexor carpi radialis
O: epicondyle of humerus
I: base of metacarpals 2 and 3
Flexor of wrist
Palmaris longus
O: epicondyle of humerus
I: palmar aponeurosis
Flexion and Adduction of wrist
Flexor carpi ulnaris
O: medial epicondyle of humerus and olecranon of ulna
I: pisiform, hamate, 5th metacarpal
Extend and abduct wrist
Extensor carpi radialis: Brevis and longus
O: epicondyle of humerus
I: base of metacarpals 2 and 3
Finger extension
Extensor digitorum
O: epicondyle of humerus
I: distal phalanges
Extend and ADDUCT wrist
Extensor carpi ulnaris
O: epicondyle of humerus
I: base of metacarpal 5
