List and describe the functions of the three cranial nerves that serve the muscles of the eye.

What will be an ideal response?


The three cranial nerves are: oculomotor, trochlear, and abducens. The oculomotor is mostly motor, with branches to the inferior oblique and superior, inferior, and medial rectus muscles, as well as to the muscles of the iris and lens. The trochlear supplies mostly motor fibers to the superior oblique muscles of the eye. The abducens supplies mostly motor fibers to the lateral rectus muscles of the eye. Like most motor nerves, they also carry some sensory information for proprioception.

Anatomy & Physiology

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Anatomy & Physiology

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Anatomy & Physiology