Human Shoulder Muscle. The shoulder is the region where the upper limb is attached to the trunk. This large muscle in the back of the upper arm helps straighten the arm.
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Deltoid When people refer to the shoulders they would most likely refer to their deltoids. Movements at the shoulder joint The shoulder has a huge range of movement compared to the hip or other joints. Together these are known as the rotator cuff muscles.
These muscles include the pectoralis major pectoralis minor subclavius and the serratus anterior muscle.
Ad Fast Cost-Effective Shoulder Pain Treatments. This large muscle in the back of the upper arm helps straighten the arm. The shoulders main motions are flexion extension abduction adduction internal rotation and external rotation. The muscles of the shoulder joint are.
