Neurons are basically the nerve cells that form the nervous system. They are basically the building blocks of nervous system. Neurons can be called as information processing units. The function of the neuron is to receive and carry message from the brain. Each part of neuron is important for communication the response. There are stem like branches at the tip of each neuron. They are called Dendrites. The dendrites are the components which basically transmit the message to the other cells of the body. Message from the dendrites is transmitted to soma. Soma basic function is to keep the neuron functional. At the end of the soma there is Axon Hillock which basically controls the firing of the neurons. At the end of neuron there is an elongated fiber. This elongated fiber is called Axon. It is axon which transfers the neural message to other parts of the body. The larger the axon, faster will be the transmission of the message.

Neurons have different types depending upon the function they perform.

Sensory Neurons
There are sensory receptor cell in the body. Neurons which carry message from these cells to the brain are called sensory neurons.

Motor Neuron
The neurons which carry message from the brain to the different muscles of the body are called Motor Neuron.

Interneuron
Neurons which function to transmit message between the different neurons present in the body are called Interneuron’s.

The neurons work just like an electric signals. The dendrites receive message from the sensory cell. The information is passed to the soma. Soma transmits it to Axon. Once the message reach the Axon it travel down and transmit just like an electrical signal.

Some parts of the brain possess more neurons as compare to the other. The reason behind this is that neuron stop reproducing shortly after the birth. Neurons cannot be reproduce. They have prime importance in functionality of nervous system. Human brain contains more than 100 billion neuron. The function of the neuron in human body depends on several regulatory genes and certain cue that take place during development. Neurons are very important for human body working. It is neuron which keeps the human body balance. If neurons do not work properly it will cause many abnormalities in the body.