A 22yo man has a reduced conscious level and a fixed dilated pupil after being involved in a MVC. Choose the single most appropriate option?

A 22yo man has a reduced conscious level and a fixed dilated pupil after being involved in a MVC. Choose the single most appropriate option?

a. Facial nerve

b. Oculomotor nerve

c. Olfactory nerve

d. Optic nerve

e. Trigeminal nerve

Ans. The key is B. Oculomotor nerve. [3rd nerve damage can cause fixed dilated pupil].