- Superior Rectus Oculi and Inferior Rectus Oculi Muscles,
- Lateral Rectus Oculi and Medial Rectus Oculi Muscles,
- Superior Oblique Oculi and Inferior Oblique Oculi Muscles.
The Rectus muscles are primarily responsible for the movement of the eyeballs in the four cardinal directions: up, down, left and right. The pair of Oblique muscles are responsible for controlling the adjustments involved in counteracting head movements, in other words being able to keep your focus on something whilst your head moves. But this is a generalization, for further information see the detailed description of every muscle.