Brains!

What does your brain... do? How does your brain work??

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  2. How does your brain work?

    Your brain has 100,000,000,000 neurons. 100 BILLION!

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  5. How do neurons talk to each other?

    One end, called the dendrites, takes in messages. The other end, called the axon terminal, gives out messages.

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  7. Types of neurons

    Different kinds of neurons carry different messages. For example, sensory neurons take in sensory information (HOT flame!) and motor neur...

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  8. How do scientist study how neurons communicate?

    We use animals like the snail aplysia. It has BIG neurons that make it easier to see how neurons talk to each other.

  9. Workout for your brain

    Your brain is like a muscle. The more you use it, the stronger it gets! By working out your brain you make it easier for the neurons to t...

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  10. Parts of the Brain: Occipital Lobe

    Your occipital lobe is in the back of your head. That is where information from your eyes is processed.

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  11. How your eyes (and your brain!) see

    Light come in through your pupil and shines on the back of your eye wher the rods and cones are. The rods and cones in your eye communica...

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  12. Bind Spot

    Where your optic nerve leaves the eye you are BLIND because you don't have rods and cones there.

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  13. Parts of the Brain: Temporal Lobe

    Sound information is processed in your temporal lobe by your temples.

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  14. How your ears (and your brain!) hear

    Sound waves come in through your ear and move fluid in your cochlea. That fluid moves hair cells that make neurons in your auditory nerve...

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  15. Cochlear Implants

    Without hair cells we can't hear. Sometimes people are born without hair cells in their cochlea or lose them because of a disease. We can...

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  16. Cochlear implant: simulation on speech and music

    What does it sound like through a cochlear implant? The more electrodes you have in your implant, the clearer the sound.

  17. Sight AND Sound: How different parts of the brain work together.

    Our occipital lobes and our temporal lobes work together to help us understand language.

  18. Parts of the Brain: Parietal Lobe

    Your parietal lobe is on the top of your head. It processes information about your body. What you feel, where you feel it, and even where...

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  19. The Arm That Wasn't There

    What happens when you don't have informatio for the parietal lobe? If you lose an arm? The brain doesn't know it's gone...

  20. Parts of the Brain: Frontal Lobe

    Your frontal lobe is at the front of your noggin'. It helps you plan, plays a role in emotions, and controls your personality.

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  21. Stabbed in the Brain: Phineas Gage

    The Curious Case of Phineas Gage who had a rod shot through his frontal lobe AND LIVED TO TELL ABOUT IT.

  22. Frontal Lobe: You need that!

    Phineas had some problems after the accident. He was moody, hostile, and gambled alot. But before the accident he was an easy-going guy w...

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