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 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 ...

Medically reviewed by William Truswell, MD Key Takeaways The cochlear nerve is part of the eighth cranial nerve and is crucial for hearing.Issues with the cochlear nerve can result from inflammation, ...

The vagus nerve is one of 12 cranial nerves in the body. It’s responsible for various bodily functions, including digestion, heart rate, and breathing. There are 12 cranial nerves in the body. They ...

Clival metastasis refers to the dissemination of malignant cells to the clivus, a central bony structure at the skull base, which can precipitate a spectrum of clinical manifestations. Among these, ...

New technology is changing the way we think about the human brain. Miles o'Brien gives us a personal look at how rewiring the mind with the aid of machines is transforming the lives of those with ...

When trying to understand the health of long-past populations, sometimes you have to rely on nothing but the bones. In anthropology, porous cranial lesions (PCLs) — areas of pitting on the roof of the ...