» Current Location: Nervous System
 » The spinal column protects the spinal cord (also part of the nervous system)
 » The nervous system receives input from the senses, including the skin, the ears and the eyes
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brain picture

 

 

brain pictureThings to know about the nervous system:

  • The central nervous system contains the brain and spinal cord
  • A neuron (nerve cell) is the basic unit of structure and function of the nervous system
  • A response that is made automatically is a reflex
brain picture

 

Did You Know That?

The often used expression that "humans only use 10% of their brains" is false!

While we may not use our brains as efficiently as we might, there's no evidence we have vast unused abilities.

At any given time about 5% of the neurons are active. But all the parts do something, and over time you use pretty much all of your brain, just as most people use all of their muscles to some degree. (Sharks Have No Bones)