When you look up side to side and down side to side, which eye muscles act?

Upwards; Superior Rectus (primary), Inferior Oblique (secondary).

Side-to-side; Medial Rectus and Lateral Rectus.

Downwards; Inferior Rectus (primary), Superior Oblique (secondary).

For a comprehensive list of all the extraocular/extrinsic eye muscles and their movements, I highly recommend this link.

Last Updated: 9 years ago in Musculoskeletal