Answer:
Six Extrinsic eye muscles attached to the exterior surface of each eyeball control eye movement and make it possible for the eye to follow a moving object.
Summary of actions of each extrinsic eye muscle:
Lateral rectus- moves eye laterally
Medial rectus- moves eye medially
Superior rectus- Elevates eye and turns it medially
Inferior rectus- Depresses the eye and turns it medially
Inferior oblique- Elevates eye and turns it laterally
Superior oblique- Depresses eye and turns it laterally