This image shows nerves (labeled in green) that control body movements emerging from the spinal cord of a mouse (upper left, in cross section) and connecting to muscles in the base of the leg.

Spinal nerves branch off the spinal cord at different points along the spine. There are 31 pairs of different spinal nerves. Each dermatome in the body corresponds to a pair of spinal nerves and ...

Humans and other animal species can experience many types of pain throughout the course of their lives, varying in intensity, ...