Describe the muscles of the upper extremity.
The muscles that fix the scapula are involved in the movement of the upper extremity.
The rotator cuf...
Describe the muscles of the upper extremity.
The muscles that fix the scapula are involved in the movement of the upper extremity. The rotator cuff muscles help to maintain the head of the humerus in the glenoid cavity of the scapula. The biceps brachii muscle flexes the elbow joint. The triceps brachii muscle extends the elbow joint. The muscles of the forearm are responsible for the movements of the wrist and fingers.
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