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My Brain & The Nervous System
Transcript of My Brain & The Nervous System
The biggest part of the brain is the cerebrum. The cerebrum makes up 85% of the brain's weight, and it's easy to see why. The cerebrum is the thinking part of the brain and it controls your voluntary muscles — the ones that move when you want them to. So you can't dance — or kick a soccer ball — without your cerebrum. Fact no. 3
So the brain is boss, but it can't do it alone. It needs some nerves — actually a lot of them. And it needs the spinal cord, which is a long bundle of nerves inside your spinal column, the vertebrae that protect it. It's the spinal cord and nerves — known as the nervous system — that let messages flow back and forth between the brain and body.
When you were born, your brain came with all the neurons it will ever have, but many of them were not connected to each other. When you learn things, the messages travel from one neuron to another, over and over. Eventually, the brain starts to create connections (or pathways) between the neurons, so things become easier and you can do them better and better. Fact no.5
Be Good to Your BrainSo what can you do for your brain? Plenty. * Eat healthy foods. They contain potassium and calcium, two minerals that are important for the nervous system. * Get a lot of playtime (exercise). * Wear a helmet when you ride your bike or play other sports that require head protection. * Don't drink alcohol, take drugs, or use tobacco. * Use your brain by doing challenging activities, such as puzzles, reading, playing music, making art, or anything else that gives your brain a workout Fact no.1
your brain is the boss of your body. It runs the show and controls just about everything you do, even when you're asleep. Not bad for something that looks like a big, wrinkly, gray sponge. Igot my information from http://kidshealth.org/kid/htbw/brain.html#
i got my pictures from addingup.org/.../19/human-brain-still-evolving/