A                                is a smaller muscle in a group that assists the agonist.

ID: Which letter indicates the levator scapulae in the image below?

ID: Which muscle is indicated by “C” in the image below?

The                                  is the larger muscle in a group and is also called the prime mover.

Muscle that increases thoracic diameter by elevating ribs during inspiration:

ID: Which letter indicates the supraspinatus in the image below?

Which muscle “flexes forearm”?

ID: Which muscle is indicated by “B” in the image below.

Anterior trunk surface anatomy matching:

ID: Which surface marking indicates the trapezius muscle in the image below?