9781422280348

Meet Your Brain

are called dendrites , and they look kind of like trees. Neurons are the only kind of cells that have axons and dendrites. And neurons are unique in another way. While other kinds of cells in your body wear out, die, and are replaced all the time,

Your brain communicates with the rest of your body via the nervous system. Messages travel from your brain down your spinal cord in the middle of your back. From there messages travel all over a network called the peripheral nervous system.

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