Human body nerve diagram

Find out about the workings of the brain and nerves.

Credit: Ross Toro, contributor

The nervous system, essentially the body’s electrical wiring, is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body.

Neurons signal to other cells through fibers called axons. Chemicals called neurotransmitters are released at gaps called synapses. These communications take only a fraction of a millisecond.

Sensory neurons respond to stimuli such as light and sound. Motor neurons carry activation signals to muscles and glands.

Neurons are supported and fed by glial cells. “Glial” derives from the Greek word for “glue.”

Vertebrates, animals with backbones and spinal columns, have central and peripheral nervous systems.

The Central Nervous System is the integration and command center of the body. It consists of the brain, spinal cord and the retinas of the eyes.

The Peripheral Nervous System consists of sensory neurons, ganglia (clusters of neurons) and nerves that connect the central nervous system to arms, hands, legs and feet.

The Cranial Nervous System nerves connect the brain to the eyes, mouth, ears and other parts of the head.

The Autonomic Nervous System nerves connect the central nervous system to the lungs, heart, stomach, intestines, bladder and sex organs.

The branch of medicine that studies the nervous system is called neurology. Doctors who treat the nervous system are neurologists.

You might also like

Complete Human Anatomy Quick Reference Study Guide Set: The Heart, Nervous System, Joints & Ligaments, Muscular System, Skeletal System (5 Anatomical Diagrams of Human Body
Book (BarCharts Inc.)
American Educational American Educational Nervous System Model Activity Set
BISS (American Educational)
  • The structure of the central and peripheral nervous systems are illustrated with the nervous system model activity set
  • A close examination of the human brain with a removable transparent overlay defining the brain lobes is included
  • Diagrams illustrate the location of the brain, spinal cord, spinal nerves, dendrites, axons, and synapses through-out the human body
  • Activity set consists of a 18 height by 24 width model, an activity guide and a transparency
  • Each model in the series contains the supplemental materials listed in the description of the general human body system model activity sets at the top of the page
Aniket Pataskar Human Anatomy
Mobile Application (Aniket Pataskar)
  • Quick reference of anatomy.
  • Pocket guide for human anatomy
  • Human Anatomy app explains anatomy in simple language.
  • Human Anatomy app is useful for beginner.
  • Human Anatomy app comes with beautiful diagrams.
  • Human Anatomy app you can use as pocket guide.
Diagrams of the nerves of the human body: exhibiting their origin, divisions and connections, with their distributions to the various regions of the cutaneous surface and to all the muscles
Book (Nabu Press)
Great Big Canvas Francis Leroy Poster Print entitled Axon anatomy, diagram
Home (Great Big Canvas)
  • Made in the USA. 365 day workmanship guarantee.
  • Archival-quality UV-resistant inks. Latex-based and designed to last.
  • Material: Poster Paper
  • Rolled Print
  • Shape: Horizontal

Copyright © . All Rights Reserved