The ________ muscle is the most active muscle of the pectoral girdle because it can move the scapula in nearly any direction.

Question

Quizplus · Accepted Answer

The trapezius muscle is responsible for moving the scapula in almost any direction and is the most active muscle of the pectoral girdle. The deltoid muscle is involved in shoulder abduction, the levator scapulae raises and rotates the scapula, the rhomboid major stabilizes the scapula, and the latissimus dorsi pulls the humerus toward the body. None of these muscles have as wide a range of motion as the trapezius when it comes to moving the scapula.

The ________ Muscle Is the Most Active Muscle of the Pectoral