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 hypoglossal nerve is one of the 12 cranial nerves arising from the brain. It's a paired nerve, and you have two — left and right. Together, the two hypoglossal nerves control the muscles of the ...

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 ...

When surgeons dissect tissue to remove a tumor or make a repair, they must work cautiously, relying on electrophysical monitors and their own anatomical knowledge to avoid cutting nerves, which could ...

A paralyzed man with a spinal cord injury to the C7 vertebrae is able to move his fingers again. Surgeons at Washington University School of Medicine rerouted working nerves in the patient's upper ...

THE origin of vertebrate animals is to be found according to many morphologists in those invertebrates which are composed of a series of segments, and one of the chief arguments in favour of this view ...