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.

The cranial nerves are a set of twelve pairs of nerves that travel to and from the brain. Each has a different function. For example, the olfactory nerve is essential for detecting smells. The ...

A neurological assessment is an evaluation of a person’s nervous system, which includes the brain, spinal cord, and the nerves that connect these areas to other parts of the body. A neurological exam ...

The optic nerve is located in the back of the eye. It is also called the second cranial nerve or cranial nerve II. It is the second of several pairs of cranial nerves. The job of the optic nerve is to ...

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 ...

A 72 year-old woman presented with progressive weakness of the left arm and leg. There was no facial weakness. On examination, she had increased tone and reflexes on the left side with a left Babinski ...

The vagus nerve is the longest and most complex of the 12 pairs of cranial nerves that originate from the brain. It transmits information to and from the brain to tissues and organs throughout the ...

A neurological assessment is an evaluation of a person’s nervous system, which includes the brain, spinal cord, and the nerves that connect these areas to other parts of the body. A neurological exam ...

Cranial nerves are pairs of nerves that connect your brain to different parts of your head, neck, and trunk. Each nerve has a corresponding roman numeral between i and xii. Your cranial nerves are ...