Question

What does cranial nerves III, IV, and VI control?

a) Cranial nerve III controls facial sensation.
b) Cranial nerve IV controls the sense of smell.
c) Cranial nerve VI controls eye movement.
d) Cranial nerve III controls taste sensation.

Answer 1

Cranial nerves III, IV, and VI control eye movement.

Step-by-step explanation:

The third cranial nerve or oculomotor nerve controls eye movement by innervating four of the extraocular muscles. It is also responsible for lifting the upper eyelid and pupillary constriction. The fourth cranial nerve or trochlear nerve controls eye movement by innervating the superior oblique muscle. The sixth cranial nerve or abducens nerve controls eye movement by innervating the lateral rectus muscle.