NERVOUS SYSTEM

By: Paula Lizárraga , Andrea Monje, Priscila Vásquez, Katya Heller and Daniela Carrasco.

NERVOUS SYSTEM

The primary function of the nervous system is to control the different systems of our body. The two parts into which our nervous system is divided are the central nervous system and peripheral nervous system. The spinal cord and brain together form the central nervous system. Neural tissues outside the central nervous system together form the peripheral nervous system.

How does your nervous system work? The nervous system is a network of cells

called neurons which transmit information in the form of electrical signals. Your brain has around 100 billion neurons, and each communicates with thousands of others – as many connections as in the world's telephone system, the biggest machine on the planet. Neurons communicate with each other at special junctions where chemicals help to bridge the gap between one neuron and the next.

HERE ARE THE PARTS

FACTS:

The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body. Vertebrates — animals with backbones and spinal columns — have central and peripheral nervous systems.

The central nervous system is made up of the brain, spinal cord and retina. The peripheral nervous system consists of sensory neurons, ganglia (clusters of neurons) and nerves that connect to one another and to the central nervous system.

SOURCES:

http://www.buzzle.com/articles/nervous-system-function.htm

http://www.livescience.com/

http://www.sciencemuseum.org.uk/WhoAmI/FindOutMore/Yourbrain/Howdoesyourbrainwork/Howdoesyournervoussystemwork.aspx