Appendicular muscles help the pelvic girdles, pectoral girdles, and the limbs. The appendicular muscles stabilize and positions the pectoral/pelvic girdles producing movement to the upper and lower limbs. The two major groups of appendicular muscles consist of the muscles of the shoulders/upper limbs and the muscles of the pelvis/lower limbs. Muscles of the shoulders and upper limbs are divided into four categories: muscles that position the pectoral girdle, muscles that move the arm, muscles that move the forearm/hand, and muscles that move the hand/fingers. Muscles that position the pectoral girdle include: trapezius (it is superficial covering the back and neck up to the base of the skull inserting on the clavicles and scapular spines), rhomboid/levator scapulae (it is deep to the trapezius attaching to cervical/thoracic vertebrae inserting on the scapular border), serratus anterior (located on the chest originating along the ribs inserting on anterior scapular margin), subclavius (originates on the ribs and inserts on the clavicle), and pectoralis minor (attaches to the scapula).…