Posterior Shoulder Muscle Diagram
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The main shoulder muscles are trapezius deltoid pectoralis major and 4 rotator cuff muscles.
Posterior shoulder muscle diagram. Located superior to the shoulder joint the deltoid muscle works with the supraspinatus to abduct the arm at the shoulder. On the anterior side of the shoulder the coracobrachialis serratus anterior pectoralis major and pectoralis minor muscles work as a group to flex and adduct the scapula and humerus anteriorly toward the sternum. Subscapularis supraspinatus infraspinatus and teres minor. Specifically this muscle blows outward from the t11 through l2 vertebrae and insert through the lower border of the 9 to 12 ribs.
Webmds shoulder anatomy page provides an image of the parts of the shoulder and describes its function shoulder problems and more. These muscles include the pectoralis major pectoralis minor subclavius and the serratus anterior muscle. Here is the shoulder anatomy starter pack for you. Shoulder muscles move the shoulder blades and upper arm bones.
The posterior deltoid is not involved in back exercises as near as much as the anterior deltoid is involved in chest exercises. All of them are supplied by the respective branches of the brachial plexus. Working on the pectoral girdle the trapezius rhomboid. On the anterior side of the shoulder the coracobrachialis serratus anterior pectoralis major and pectoralis minor muscles work as a group to flex and adduct the scapula and humerus anteriorly toward the sternum.
This however is not true. The serratus posterior inferior is located where the lumbar and thoracic regions join together. The shoulder is a complex combination of bones and joints where many muscles act to provide the widest range of motion of any part of the body. Shoulder glenohumeral joint.
Numerous muscles help stabilize the three joints of. The latissimus dorsi and teres major on the posterior. Anterior shoulder muscles also called the pectoral muscles attach the upper extremity to the clavicle and the thoracic cage. The latissimus dorsi and teres major on the posterior side extend and adduct the arm towards the vertebrae of the back.
Respiratory muscles byfariza. This may lead to severe structural issues of the shoulder joint. These muscles form the outer shape of the shoulder and underarm. Respiratory muscles byfariza coggle diagram.
The function of the posterior deltoid is transverse. Muscle attachments origins insertions are described in the video at the bottom of this article and in the. The list of muscles and their functions are presented below. The shoulder has about eight muscles that attach to the scapula humerus and clavicle.
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