All anterior muscles that move the pectoral girdle are deep to other thoracic muscles - TRUE.
- The proximal end of the humerus, the lateral ends of the clavicle and the scapula, and the muscles that cover these three bones make up the pectoral girdle, or shoulder girdle, which serves to maintain the shoulder joint.
- The girdle serves as a basis from which the humerus head can move the arm in a variety of directions at its ball-and-socket connection with the glenoid fossa of the scapula.
- On the thorax are the muscles that support and place the pectoral girdle.
- The subclavius, pectoralis minor, and serratus anterior are the anterior thoracic muscles.
- The trapezius, levator scapulae, rhomboid major, and rhomboid minor are the posterior thoracic muscles.
- One of the muscles closest to the skin on the front of the chest is the pectoralis minor muscle.
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