Nervous System (a True Book: Your Amazing Body)

Discover the main systems of our amazing human body with this new series of books!

The human brain is a natural wonder = the command center that, through a network of nerves, runs every other system in our bodies. Did you know that there are 100,000,000,000 neurons in your brain? Or that your funny bone is actually a nerve in the elbow, not a bone? Learn all this and more in Nervous System.