Inside the brain poster
Go inside the brain with our classroom poster, free to download
Our brains contain some 86 billion neurons, or nerve cells, which communicate via junctions called synapses. At these junctions, neurons are just 20 nm apart. Inside each of our heads you’ll find one brain, billions of neurons and trillions of synapses.
We’ve shown one of each in detail in our free ‘Inside the Brain’ poster. Download the poster or its images below.Lead image:
'Big Picture: Inside the Brain' 2013 CC BY