Msa Exam 1 Action Solved 100% Correct

MSA Exam 1 Action Solved 100%Deltoid Action - ANS--Abduction by middle fibers with stabilization by the anterior and posterior fibers-Anterior fibers flex and in supine position, medially rotate the shoulder joint and horizontally adduct arm-Posterior fibers extend and in the prone position, laterally rotate, horizontal abductionCoracobrachialis action - ANS-flexes and adducts the shoulder jointPectorals major action - ANS--Whole muscle- adducts and medially rotates humerus, elevation of sternum in forced inspiration-Clavicular head- horizontal shoulder auction, flexion and medial rotation -sternocostal head- horizontal shoulder adduction shoulder extensionBiceps brachii action - ANS-supinates forearm and when it is supine, flexes forearm, assists with shoulder flexionTeres Major action - ANS-Medially rotates, adducts and extends the shoulder jointLatissimus Dorsi action - ANS-Extends, adducts and medially rotates humerus, elevation of trunk towards armsTriceps action - ANS-Extension of elbow: Long head assists in extension and adduction of shoulderSupraspinatus Action - ANS-Abducts the shoulder joint, and stabilizes the head of the humerus in the glenoid cavity during movements of this joint.Middle deltoid - ANS-Abduction of the shoulder joint, performed chiefly by the middle fibers with stabilization by the anterior and posterior fibers.Subscapularis Action - ANS-Medially rotates the shoulder joint, and stabilizes the head of the humerus