MRCP UK EXAMINATIONS

Detailed explanation-1: -Function: Clavicular head flexes and adducts arm. Sternal head adducts and medially rotates the arm.

Detailed explanation-2: -Serratus anterior. Flexes and adducts arm at the shoulder along with pectoralis major.

Detailed explanation-3: -Latissimus dorsi extends, adducts and medially rotates the arm. It also draws the shoulder downward and backward and keeps the inferior angle of the scapula against the chest wall.

Detailed explanation-4: -The subscapularis is the largest component of the posterior wall of the axilla. It prevents the anterior dislocation of the humerus during abduction and medially rotates the humerus.

Detailed explanation-5: -The coracobrachialis adducts and flexes arm. This specific muscle serves the function of adduction and flexion at the glenohumeral joint.