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1. The cells responsible for the transmission of the nerve impulse are ________.
 
 
 
 

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2. The nerve impulse travels down a(n) ________, away from the cell body.
 
 
 
 

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3. Which of the following central nervous system cells regulate ions, regulate the uptake and/or breakdown of some neurotransmitters, and contribute to the formation of the blood-brain barrier?
 
 
 
 

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4. Critical Thinking: Which morphological adaptations of neurons make them suitable for the transmission of nerve impulse?

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5. Critical Thinking: What are the functions of astrocytes?

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