Which of the following is a function of glial cells?
a. Glial cells slow down the activity of nerve cells.
b. Glial cells manufacture myelin.
c. Glial cells suppress the immune system response.
d. Glial cells contain the nucleus that houses the cell's genetic material.
Answer: B
Rationale: This is a fatty sheath (like the plastic around an electrical cord) that insulates axons from one another, and increases the speed and efficiency of neural communication.
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Answer the following statement true (T) or false (F)
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