Question

Which of the following is NOT a sensory nerve?

Options

• I

• II

• III

• IV

Answer 1

III

Explanation:

Cranial nerve I (olfactory) and II (optic) are purely sensory (smell and vision), and VIII (vestibulocochlear) is sensory (hearing and balance). Cranial nerve III (oculomotor) is primarily a motor nerve that controls most extraocular muscles and the levator palpebrae (and carries parasympathetic fibres), so it is not a sensory nerve.