The Brain

The Brain

What is the Brain?

The brain is the portion of the central nervous system in vertebrates (animals with bones) that lies within the skull. Read more…->

Now see this interactive guide

basicbrain
Basic Brain

As you will have seen from the guide, each lobe of the brain has a different function.

Messages travel between the lobes and the rest of the body through neural pathways that consist of neurons and the gaps between them.

Nerve Cells of the Brain

complexneurondesign
Complex neuron Design

Nerve cells, or neurons, are the building blocks
of the brain. They work like computer chips,
analysing and processing information, and then
sending signals through the nerve fibres which
act like telephone wires, connecting different
areas of the brain, spinal cord, muscles, and
glands.

Dendrites

basicneurondesign
Basic Neuron design

Basic Neuron design

Each neuron has dendrites  or nerve endings – These small, branch-like projections of the cell  make connections to other cells and allow the neuron to talk with other cells or perceive the environment.

Dendrites can be located on one or both ends of the cell.

The Synaptic Gap is  the small space between two
neurons across which information is transmitted
and received by way of chemical substances, I.e. neurotransmitters.

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