A complex system of nerves and muscles enables the human eye to blink, gaze, and shift focus. The trochlear nerve is one of six cranial nerves that carry electrical impulses from the brain to the eye.

Your brainstem hosts multiple cranial nerves. The facial nerve is the seventh cranial nerve. It controls your facial movements and expressions. The nerve fibers controlled by your facial nerve also ...

Hi everyone! Today's video is the fastest one minute cranial nerve exam! We will be testing vision, smell, feeling, and ...

Also known as CN1, the olfactory nerve is the first of 12 cranial nerves located within the head. It relays sensory data to the brain, and it is responsible for the sense of smell. The nerve’s ...

The vagus nerve is getting a lot of attention online these days. As just one of 12 paired cranial nerves, you may wonder what’s so special about it. But if you’ve seen people on social media sharing ...

Sixth nerve palsy simply means paralysis of the sixth cranial nerve. What causes it, and can it be fixed? My dad is about to find out. We all know that as we get older, our bodies won't work as well ...

A 68-year-old man was diagnosed with ocular myasthenia gravis after presenting with double-vision and photophobia. Myasthenia gravis (MG) often begins with ocular symptoms, and sometimes those ...

Small cranial nerve tumors that can cause hearing loss, vertigo and ringing in the ears are often watched rather than treated, but a new study is set to change how the tumors, called vestibular ...