Nervous+System+Notes+CH

=Nervous System Class Notes - 2/13=

What is a nerve? -A bundle of nerve cells Spinal Cord is biggest nerve in your body with branching smaller nerves coming off of it. The spinal cord is a center for control of your entire body.



-Each part of the spinal cord has a corresponding part in the brain to which it sends the signal (related by different senses) -Signals are sent to the brain through "action potential" -action potential lets sodium in and potassium in order to make is positive and then negative