Your brain is directly connected to various parts of your head, neck, and trunk by twelve pairs of nerves – these are your cranial nerves. They play an important role in sensing, controlling ...

Cranial neuropathies include many conditions that affect any part of the 12 cranial nerve pairs in the brain. General symptoms may include pain, weakness, and loss of function.

Optic nerves (cranial nerve II): carry visual information from the retina to the primary visual nuclei of the brain. Each optic nerve consists of around 1.7 million nerve fibers.

The trochlear nerve is the fourth of 12 cranial nerves that emerge from the brain and extend down the head, neck, and torso. Cranial nerves help control sensory innervation: i.e., the ability to ...

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 trigeminal nerve may be central to what happens in your body during a migraine attack. It’s one of 12 cranial nerves that start at the base of your brain and is a key player in the pain you ...