Muscle Case Study

Describe each action in terms of the muscle, the action, and the joint. For example,

Nodding the head forward

The sternocleidomastoid muscle flexes the neck.

Describe the process of hammering a nail.

1.         Grip the hammer.

2.         Grasp the nail with thumb and index finger.

3.         Tap nail using the wrist.

4.         Release the nail.

5.         Pound the nail with action of the forearm at the elbow.