SIGNALS

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The news inside you

How does your brain find out that your toe bumped the table?

Inside the body

Tap the toe. Receptors respond. A change begins to travel.

  1. Source

    Toe

  2. Medium

    Nerve

  3. Signal

    Action potential, then neurotransmitter

  4. Detector

    Brain

  5. Measurement

    Firing pattern

  6. Meaning

    Something happened to your body