Page 6 - SECTION B: Understanding the Brain Unit 1 Brain Building
P. 6
The Brain’s Road & Postal System
Neural Firing: the brain’s postal system
Whenever we think, do or say
anything, neurons pass information to
each other through an electrical signal.
It’s a bit like a letter in the post –
information starts in one place and travels
to another.
When a neuron fires an electrical signal, it travels down the trunk of the neuron
and releases special brain chemicals.
These brain chemicals and the ‘branches’ of the neuron help the signal to travel
across a gap (called the synapse) to the next neuron.
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