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Diagram

Medial Rectus Muscle

The medical rectus is one of three pairs of taut, elastic muscles that hold each eye in place. Each constantly balances the pull of the others. The superior rectus acts to roll the eyeball back and up, but it is opposed by the inferior rectus. In the same way, the lateral rectus pulls to the side, while the medial rectus pulls toward the nose, and the two oblique muscles roll the eye clockwise or counterclockwise. Continue Scrolling To Read More Below...

Continued From Above... The muscles of each eye work together to move the eyes in unison. Because of the constant tension in the muscles, they can move the eye very quickly, much faster than any other body movement.