The neuron

The nerve cells are called neurons which have these major components:

• Cell body (also called soma) containing a nucleus
• Dendrites, tree-branch like fibres which receive neural signals (in the form of impulses of action potentials) through synaptic connections from other neurons.
• Axon a long fibre which carries the impulses generated by the neuron to other neurons through synaptic connections.

The cell wall is a lipid bilayer membrane which separetes the intracellular fluid from the extracellular space.