<P> A neuron ( / ˈnjʊərɒn / NYEWR - on or / ˈnʊərɒn / NEWR - on , also known as a neurone or nerve cell ) is an electrically excitable cell that receives , processes , and transmits information through electrical and chemical signals . These signals between neurons occur via specialized connections called synapses . Neurons can connect to each other to form neural networks . Neurons are major components of the brain and spinal cord of the central nervous system , and of the autonomic ganglia of the peripheral nervous system . </P>
where are nerve cells located in the human body
brain and spinal cord of the central nervous system autonomic ganglia of the peripheral nervous system