Deltoid Action: Abducts shoulder (humerus); posterior deltoid- extension of the shoulder; anterior deltoid flexes shoulder.

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Presentation transcript:

Deltoid Action: Abducts shoulder (humerus); posterior deltoid- extension of the shoulder; anterior deltoid flexes shoulder

Biceps Brachii Action: flexes elbow (forearm); supination of forearm (radius/ulna) and shoulder (glenohumereal joint)

Brachioradialis Action: flexes elbow

Upper Appendicular Muscles Infraspinatus Supraspinatus Flexor Capri Ulnaris Carley Bedell and Britnia St. Pierre

Infraspinatus Action: Lateral Rotation of the shoulder (humerus); horizontal adduction of humerus.

Supraspinatus Action: Adduction of shoulder (humerus); stabilizes shoulder joint

Flexor Capri Ulnaris Action: Flexes wrist; acts with Extensor Carpi Ulnaris to adduct wrist

Subscapularis: medial (internal) rotation of humerus; stabilizes shoulder lateral (external) rotation of humerus

Brachialis: flexes elbow

Flexor carpi radialis: flexes and abducts wrist

Teres Minor: Action: provides Lateral, external rotation of humerus.

Triceps Brachii: Action: extends elbow and shoulder

Extensor carpi ulnaris: Action: extends and adducts wrist, also acts with flexor carpi ulnaris to adduct wrist.

Extensor carpi radialis (longus and brevis) action: extends and abducts wrist, and acts with flexor carpi radialis to abduct wrist.