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Your selections: Cells and Circuits > Neurons
Our brain and nervous systems are always at work, helping to balance the body’s many intricate systems.
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The human brain is wired for complex communication — just right for moving speeches and zingy one-liners.
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Neuroscientist John Morrison explains what really happens to our brain cells as we age.
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  • 1 min
The six layers of cells comprising the cerebral cortex are responsible for some of the most complex functions in the brain.
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Bundles of extra-long axons transmit signals from eyes to brain.
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Neuroscientist Nick Spitzer explains gene expression and how it helps your body’s cells function.
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  • 1 min
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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