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Hyperextension of the shoulder joint

Muscles used for this motion:

Same muscles that cause extension of the shoulder joint. However, these muscles will now move the joint beyond a straight line or 180 degrees.

Deltoid model (posterior fibers only) (sketch) (cadaver video)

Latissimus dorsi model (sketch) (cadaver video)

Teres major model (sketch)

Infraspinatus model (sketch)

Teres minor model (sketch)

Triceps brachii model (long head only) (sketch) (cadaver video)