Lateral view of the vertebral columns showing the spinal roots coming out of the intervertebral foramen

Nerves are bundles of axons that conduct electrical impulses. 

They are the body's communication system, transmitting signals between the central nervous system and the periphery.

Nerve pathways can be classified as sensory, motor and mixed sensory-motor pathways. 

  • Sensory nerves carry information from the sense organs to the central nervous system (CNS).
  • Motor nerves transmit information from the CNS out to muscles and glands.
  • Mixed sensory-motor nerves contain both types of information.

Find more information on the structure and function of nerves in our interactive diagrams and tutorials, or learn this topic in-depth with quizzes and video tutorials.