I.  Click on  "The Brain Book".  Answer the following questions.

A.  What is the human brain, "physically speaking"?

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B.  What are the two types of matter that make up the brain?

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C.  What does this network of cells do?

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II.  Click on the back arrow, then click on "Narrated Neurons."
A.  What are neurons?  Why are they important?

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B.  Click on the right arrow.  Is the size of the brain important for intelligence?  Explain your answer.

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C.  Click on the right arrow.  Explain how the brain is similar to a computer.  Include the definition of
neurotransmitters.

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D.  Click on the right arrow.  List some diseases that are caused when neurotransmitters do not function
properly.

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