Match each structure to its description.
Myelin
A fatty, insulating substance that forms a sheath around axonsSynapse
A long extension that sends signals not only to other neurons but also to muscles and glands, often a considerable distance awayCell body
A tiny gap between nerve cellsDendrite
Short, rootlike structures that receive chemical and electrical signals from other neuronsAxon
The portion of the neuron with the capacity to regulate growth, metabolism, and repair