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 ...

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 ...

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 vagus nerve is the longest of the 12 cranial nerves. Here, learn about its anatomy, functions, and the kinds of health problems that can occur.

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.

Dear Reader: The vagus nerve is a long, branching and meandering nerve that serves as an information superhighway. It is the longest and most complex of the 12 cranial nerves. Although referred to ...

What gives this nerve such widespread impact? The vagus nerve is the longest of the cranial nerves, which emerge directly from the brain rather than traveling through the spinal cord. It begins at ...