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Your selections: Cells and Circuits > Neurons
Your brain’s 86 billion neurons wire up to form circuits. But just what is a circuit?
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  • 1 min
Neural stem cells may transform into any type of neuron. Harnessing that potential might help us treat brain injuries and diseases that kill neurons.
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Construct a colorful working neuron and build out your own neural network.
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Neuroscientist Suzana Herculano-Houzel explains how the human brain “lost” 14 billion neurons overnight.
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  • 10 min
His drawings of brain cells helped kick off the field we know today.
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Neurons get a lot of glory for generating the brain’s electrical signals, but a network is only as powerful as the nodes that connect its wires.
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The brain made up of around 86 billion neurons, with trillions of connections between them. How does this come to be?
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Two Nobel-winning scientists explain how your brain gets you from Point A to Point B.
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  • 6 min
When trying to tell neurons apart, count the limbs.
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Long considered supporting actors, astrocytes’ newly discovered purposes have pushed them into a lead role.
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Your brain births new cells all the time. Here’s how it works.
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Electrical circuits and neurons have a lot in common. Show your students how neurons send messages in this hands-on activity.
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