white matter within the central nervous system funtioncs primarily in what?

Question

I need help answering these study questions for my final exam next week.

Answer 1

Gray matter is the cell bodies, white matter is the myelin sheaths of axons.  Myelin functions to increase the speed of conduction by making the signal jump down the axon instead of traveling progressively down. This is called saltatory conduction.  Charge hops from one node of Ranvier to the next.