Question

The cranial nerves which are exclusively sensory in function are

• A. Olfactory and optic
• B. Optic and oculomotor
• C. Hypoglossal and optic
• D. Hypoglossal and olfactory

Answer 1

The correct option is A Olfactory and optic

Sensory nerves receive sensory inputs from the internal and external environment and transmit it to CNS (brain and spinal cord) for processing. Motor nerves transmit the nerve impulses from CNS to effectors (muscles and glands). Out of 12 cranial nerves, olfactory, optic and vestibulocochlear nerves are exclusive sensory nerves. On the other hand, oculomotor, trochlear, abducens, spinal accessory and hypoglossal nerves are exclusive motor nerves.

So, the correct answer is option A.