How a Joint Moves:

The extensor muscles pull your hand and fingers up.

The flexor muscles pull your hand and fingers down, and are responsible for making a fist.

 

By gripping your forearm you can feel the muscles that move your hand, fingers, and wrist.

 


 

The extensor muscles pull your hand and fingers up.

 

 

The flexor muscles pull your hand and fingers down, and are responsible for making a fist.

 

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