Thursday, November 6, 2008

Organs and other parts of the nervous system

All of the organs and other parts in the nervous system serve a very important purpose (especially the brain).   I say especially the brain, because without it you couldn't think.  And to breath you need to be able to think.  The brain also receives signals from the spinal cord (a long snake-like bundle of nerves connected to your brain) so it knows how to react to whatever is happening.  The average brain weighs about five pounds.                                      


        

The spinal cord, as you already know, is a long snake-like bundle of nerves connected to the brain.  It's purpose is to receive signals sent by nerves throughout the body, and send them to the brain.  Breaking your spinal cord causes you to get parellized, meaning you can't move your body.  Sometimes the spinal cord doesn't have to send a signal to your your brain in order for you to react.  For example if you touch something hot, your nerves send a signal straight to your spinal cord, which makes you pull your hand back as a reflex.  Your nerves, AKA receptors, are located almost everywhere in your body.  one of the only places where you don't have many nerves is your elbow.
By: Bowen Kane




 

2 comments:

Bowen kane said...

wow! Karina you did a great job! love the blog!
-Karina

Bowen kane said...
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