14 terms

Move Upper Extremities

Flashcards for move upper extremities.
Pectoralis major
a skeletal muscle that adducts and rotates the arm
Latissimus dorsi
adducts and extends upper arm/shoulder, rotates humerus medially
a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
Teres major
teres muscle that moves the arm and rotates it medially
Biceps branchii
Origin- Scapula near glenoid fossa. Insertion - Radial tuberosity of radius. Action-Flexes forearm.
Triceps branchii
Origin - Scapula and shaft of humerus. Insertion - Olecranon process of ulna. Action - Extends forearm.
O - Humerus, I - Ulna, A - Flex Elbow
Origin: long head- supraglenoid tubercle and glenohumeral labrum & short head- tip of the coracoid process of the scapula Insertion: radial tuberosity &bicipital aponeurosis Action: flexes the forearm at the elbow (when supinated) & supinates forearm from neutral & stabilizes anterior aspect of shoulder & flexes shoulder (weak if at all) Blood: muscular branches of brachial artery Nerve: musculocutaneous nerve, C5,6
Palmaris longus
Origin - Medial epicondyle of humerus. Insertion - Proximal phalanges of digits 2 to 5. Action - Flexes proximal phalanges.
Flexor carpi radialis
Origin - Medial epicondyle of humerus. Insertion - Base of metacarpals 2 and 3. Action - Flexor of digits 2 and 3.
Flexor digitorum superficialis
O: distal humerus, ulna, radius I: 2-5th digits A: flexes hand and fingers
Extensor digitorum
Extends wrist, metacarpophalangeal, and interphalangeal joints; tends to spread digits apart when extending metacarpophalangeal joints. O: Lateral epicondyle of humerus. I: Dorsal surfaces of phalanges II - V.
Extensor digiti minimi
O: ulnar side of extended digitorum belly I: joins tendon if extended digit to pinky PRIMARY ACTION: pinky extension
Extensor carpi ulnaris
Extends and fixes wrist when fist is clenched or hand grips an object; aids in ulnar flexion of wrist. O: Lateral epicondyle of humerus; posterior surface of ulnar shaft. I: Base of metacarpal V.