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subscapularis

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What muscle rotates the arm medially?

The "Subscapularis" This muscle rotates the arm medially (sub = below, scapulo = shoulderblade)


What does a Major do?

Adducts and rotates the arm.


What 4 muscles are used to prevent movement of a broken clavicle?

There are actually more than 4 muscles that should be immobilized. When you move your shoulders you move your clavicle. The muscles that causes movement at the shoulder joint should be immobilized. This includes the prime movers, as well as the assistant movers. The following muscles should be immobile. The subclavius which moves and depresses the clavicle as well as helps stabilize the pectoral girdle. The pectoralis minorabduct the scapula and rotates it downward, lowering your shoulders. The serratus anterior abducts the scapula and cause it to rotate upward, shrugging your shoulders. The trapezius stabilizes the scapula as well as move it, and helps extend head. The levator scapulae elevates the scapula and rotates it downward. The rhomboid majorelevates, adducts, rotates downward, and stabilizes the scapula. The Rhomboid minor does the same thing as the Rhomboid major. The pectoralis major adducts and medially rotates the arm at the shoulder joint; flexes arm at the clavicular head and extends the arm to the side of the trunk at the sternocostal head. The deltoid abducts the arm at the shoulder joint; flex and medially rotates the arm at shoulder joint; and extend and laterally rotates the arm at shoulder joint. The subscapularis medially rotates the arm at shoulder joint. The supraspinatus assists the deltoid muscle to abduct the arm at the should joint. The infraspinatuslaterally rotates and abducts the arm at the shoulder joint. The teres major extends the arm at the shoulder joint and assists in the adduction and medial rotation of the arm at the shoulder joint. The teres minor laterally rotates, extends, and adducts the arm at the shoulder joint. The coracobrachialis flexes and adducts the arm at the should joint.


The teres major and tere minor originate on the?

A muscle with origin from the lower third of the border of the scapula, with insertion into the medial border of the , with nerve supply from the lower subscapular nerve from the fifth and the sixth cervical nerves, and whose action adducts and extends the arm and rotates it medially.


Which muscles flex the arm?

the anterior part of the deltoid muscle flexes and medially rotates the humerus/ the arm. to do this it is helped by muscles like coracobrachialis and pectoralis major, corachobrachialis also adduct and flex the arm at shoulder joint.


Flexes and adducts arm at the shoulder along with pectoralis major?

The muscle that flexes and adducts the arm at the shoulder, working alongside the pectoralis major, is the latissimus dorsi.


What muscle flexes and adducts arm at the shoulder?

which shoulder muscle allows you to adduct your arm


What is thwe muscle found in the chest that adducts the arm?

The pectorals major


What muscle extends and adducts the humerus?

Both the supraspinatus and deltoid muscles are the main ones respnosible for abduction of the arm. The supraspinatus is responsible for abducting the arm for the first 15 degrees, while the deltoid is responsible for abducting the arm after 15 degrees.


What is the antagonist of the teres major muscle?

Teres Major originates on the dorsal aspect of the inferior angle of the scapula and inserts on the medial lip of the intertubercular groove of the humerus. Teres Major can internally rotate and adduct the arm.


What muscle in upper arm that extends lower arm?

The posterior deltoid is one extensor of the upper arm.


What is the muscle on upper chest that adducts arm?

The muscle on the upper chest that adducts the arm is the pectoralis major. It is a large, fan-shaped muscle that helps to bring the arm closer to the body and is commonly worked during exercises like bench presses and push-ups.