This site may help you to better understand the establishment of ion gradients.

Question: A. What two processes are involved in establishing concentration gradients?

B. What does the Gibbs equation describe?

http://www.neurolaw.com/brain.html#Brain

This site is an overview of brain function and anatomy.

Question: On a piece of paper, write down the three main areas of the brain.

http://www.neurolaw.com/brain.html#Injury

Descriptions and the consequences of different types of head injuries are discussed.

Question: To what does the term "closed head injury" refer?

http://www.luton.ac.uk/healthcare/Ross/AUTONOM.HTM

The divisions of the nervous system are discussed at this site.

Question: Differentiate between the functions of the autonomic and somatic nervous systems.