Excess pressure on this cranial nerve affects pupillary size and the activity of the levator palpebrae superioris.
A)VIII
B)II
C)X
D)III

Question

Quizplus · Accepted Answer

Excess pressure on cranial nerve III (oculomotor nerve) can affect the pupils' size and the activity of the levator palpebrae superioris muscle, which raises the eyelid. This can cause ptosis or drooping of the eyelids and changes in the pupils' size and shape. The oculomotor nerve supplies the muscles responsible for most eye movements, controlling the majority of the eye's motor functions.

Excess Pressure on This Cranial Nerve Affects Pupillary Size and the Activity