The ________ muscle is the most active muscle of the pectoral girdle because it can move the scapula in nearly any direction, depending on the active region and the state of other muscles.

Question

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The trapezius muscle is the most active muscle of the pectoral girdle because it can move the scapula in nearly any direction, depending on the active region and the state of other muscles. The deltoid, levator scapulae, rhomboid major, and latissimus dorsi muscles are also involved in the movement of the scapula, but to a lesser extent than the trapezius.

The ________ Muscle Is the Most Active Muscle of the Pectoral