In some (although not all) cases of multiple sclerosis, one of the first symptoms noticed is a reduction in sensation from distal parts of the body, such as feet and hands. Which of the following statements best explains why this might happen?
a. The fibers of the axons are reduced in diameter, so the information can't travel fast enough.
b. Neural signaling may not work properly as a result of nervous system demyelination.
c. The fibers of the axons are enlarged, slowing the neural transmission.
d. The neurons have degenerated and are no longer producing neural transmission.
Question 2
A single oligodendrocyte may myelinate axons from an average of _____ different neurons.
a. 2
b. 5
c. 10
d. 15
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