Sunday, 29 January 2012

2.83 Central Nervous System

Recall that the central nervous system consists of the brain and spinal cord and is linked to sense organs by nerves.

  • The nervous system controls your action and coordinates different parts of the body.
  • The main parts of the nervous system are the brain and the spinal cord and together they are called the central nervous system. They are both made of delicate nervous tissue so both are protected by bones. The brain is protected inside the skull and the spinal cord is protected inside your backbone.
  • The central nervous system is connected to different parts of the body by nerves which is made up by nerve cells or neurons.
  • Sense organs are our receptors and they send messages to the central nervous system and are sent along the sensory neurons
  • When the central nervous system sends messages telling effectors what to do, the message is sent along the motor neuron

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