The glial cells forming myelin sheaths are called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier.
hope this helps :p
The answer would be B or D but i'm pretty sure it's B
C- safety belts don’t try and prevent falls
It depends, you really cant decide that but the meaning of life is death so does it really matter?