Question

select all that apply
what are the functions of the oculomotor nerve (cn iii)?

it controls muscles of the pupil, to adjust the amount of light entering the eye.
it controls muscles that raise the eyelid.
it carries sensation from the skin of the face.
it controls muscles that move the eye.
it carries sensory impulses for the sense of vision.

Explanation:

1. The oculomotor nerve (CN III) controls the pupillary muscles (for light adjustment), the levator palpebrae superioris (raises eyelid), and extraocular muscles (eye movement).
2. Sensation from the face is carried by trigeminal nerve (CN V), and vision - related sensory impulses are carried by the optic nerve (CN II), so those options are incorrect.

Answer:

• It controls muscles of the pupil, to adjust the amount of light entering the eye.
• It controls muscles that raise the eyelid.
• It controls muscles that move the eye.