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1. What type of glial cell provides myelin for the axons in a tract?
 
 
 
 

Question 1 of 7

2. Which part of a neuron contains the nucleus?
 
 
 
 

Question 2 of 7

3. Which of the following substances is least able to cross the blood-brain barrier?
 
 
 
 

Question 3 of 7

4. What type of glial cell is the resident macrophage behind the blood-brain barrier?
 
 
 
 

Question 4 of 7

5. What two types of macromolecules are the main components of myelin?
 
 
 
 

Question 5 of 7

6. Critical Thinking: Multiple sclerosis is a demyelinating disease affecting the central nervous system. What type of cell would be the most likely target of this disease? Why?

Question 6 of 7

7. Critical Thinking: Which type of neuron, based on its shape, is best suited for relaying information directly from one neuron to another? Explain why.

Question 7 of 7