Question

Which cranial nerves are sensory?

• A. 1, 2, 8
• B. 3, 4, 6, 11, 12
• C. 5, 7, 9, 10
• D. None of the above

Answer 1

The correct option is A 1, 2, 8

A sensory nerve is a nerve that carries sensory information toward the central nervous system.

There are total 12 cranial nerves out of which there are 3 sensory nerves - Olfactory (1st), Optic (2nd) and Vestibulocochlear nerve (8th). 5 are motor nerves - Oculomotor (3rd), Trochlear (4th), Abducens (6th), Spinal accessory (11th) and Hypoglossal nerves (12th) and rest 4 are mixed nerves - Trigeminal (5th), Facial (7th), Glossopharyngeal (9th) and Vagus (10th).

Thus, the correct answer is option A.