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Brachialis Origin Distal lateral end of humerous
Brachialis Action Flexes Elbow
Coracobrachialis Origin Coracoid process of scapula
Coracobrachialis Action Flexes an adducts the arm
Deltoid Origin Acromion and spine of the scapula and the clavicle
Deltoid Action Abducts, extends, and flexes arm
Flexor carpi ulnaris Origin Flexes wrist and abducts hand
Infraspinatus Action Rotates arm laterally
Infraspinatus Origin Inffraspinous fossa of scapula
Pectoralis major Origin Clavicle sternum and costal cartilages of upper ribs
Pectoralis major Action flexes adducts and rotates arm medially
Pectoralis minor Origin Sternal ends of ribs 3-5
Pectoralis minor Action Pulls scapula forward and downward; raises ribs
Serratus anterior Origin Lateral surfaces of most ribs
Serratus anterior Action Pulls scapula anteriorly (protracts scapula)
Teres major Origin Lateral border of scapula
Teres major Action Extends, adducts and rotates arm medially
Triceps brachii Action Extends elbow
Triceps brachii Origin lateral and medial surfaces of humerus
Biceps brachii Action Flexes elbow and supinates forearm and hand
Trapezuis Action Rotates scapula; various fibers raise scapula, pull scapula medially, or pull scapula and shoulder downward
Latissimus dorsi Action Extends, adducts, and rotates the arm medially
Latissimus dorsi Origin spinous processes of lumbar and lower thoracic vertebrae, illiac crest, and lower ribs
Created by: Mnsmith0926