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.

Cranial neuropathy occurs when there is damage to the cranial nerves in the brain or brain stem. Depending on the affected cranial nerve, people may experience different symptoms, such as weakness on ...

Your sense of smell comes from the olfactory nerve, the first cranial nerve. Multiple sensory nerve fibers make up the olfactory nerve. This nerve plays a vital role in using your senses to enjoy your ...

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 ...