Which nerve is associated with lateral eye movement?

The correct answer, Cranial Nerve VI, also known as the abducens nerve, is responsible for the lateral movement of the eye. It innervates the lateral rectus muscle, which allows for the outward movement of the eyeball. This is crucial for coordinated eye movement and proper vision alignment, particularly for looking to the sides.

Understanding the functions of cranial nerves highlights the role of each in ocular movements. Cranial Nerve V, known as the trigeminal nerve, primarily handles sensation in the face and motor functions such as biting and chewing. Cranial Nerve VII, the facial nerve, is mainly involved with the muscles of facial expression and the sense of taste. Cranial Nerve IX, the glossopharyngeal nerve, has functions related to taste, swallowing, and salivary gland secretion.

Thus, Cranial Nerve VI’s specialized role in facilitating lateral eye movement clearly identifies it as the correct answer in this context.