Muscles of the Shoulder and Arm

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This flashcard set features the muscles of the shoulder and arm. I hope you find it helpful as you study muscle identification and their actions in lab. All muscle model photographs by Rob Swatski (2009-2010). Visit my iTunes U site for Anatomy podcasts and PDF files of all of my anatomy photo visual guides! http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=424629511

Biceps brachii

Flexes and supinates forearm

Brachialis

Flexes elbow

Deltoid

Flexes, medially rotates, and abducts arm

Infraspinatus

Laterally rotates shoulder; stabilizes the head of the humerus in glenoid cavity; one of the "rotator cuff" muscles

Supraspinatus

Abducts arm; stabilizes the head of the humerus in glenoid cavity; one of the "rotator cuff" muscles

Teres minor

Laterally rotates arm; one of the "rotator cuff" muscles

Teres major

Medially rotates and adducts the arm

Triceps brachii

Extends forearm

Biceps brachii

Flexes and supinates forearm

Brachioradialis

Flexes elbow

Coracobrachialis

Flexes and adducts the humerus

Extensor digitorum

Extends fingers and the wrist

Flexor carpi radialis

Flexes wrist and abducts hand

Flexor carpi ulnaris

Flexes and adducts wrist

Palmaris longus

Flexes wrist

Pronator teres

Pronates forearm and assists in flexing the elbow

Triceps brachii

Extends forearm

Trapezius

Elevates, depresses, retracts, and rotates the scapula; rotates the arm

Trapezius

Elevates, depresses, retracts, and rotates the scapula; rotates the arm

Latissimus dorsi

Extends, adducts, and medially rotates the arm; draws the shoulder downward and backward

Pectoralis major

Adducts and medially rotates the arm; flexes and extends humerus

Serratus anterior

Abducts and protracts the scapula

Corachobrachialis

Flexes and adducts the humerus

Anconeus

Extends forearm and stabilizes elbow joint

Extensor carpi radialis longus

Extends wrist and abducts hand

Anconeus

Extends forearm and stabilizes elbow joint

Serratus anterior

Abducts and protracts the scapula

Latissimus dorsi

Extends, adducts, and medially rotates the arm; draws the shoulder downward and backward

Pectoralis major

Adducts and medially rotates the arm; flexes and extends humerus

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