Abstract:
The fundamental element of nervous system, of a man with which he can ,sense and transmit any disturbance is neuron. These neurons have two parts via. axon which is a long process and dendrite, which is terminal part of neuron. When a parti-cular place of body is excited the information is carried to. either direction with characteristics velocity. . For exaaple, it a finger is suddenly exposed to thermal shock, the informa-tion of the brain is again transmitted through the neuron to the finger muscles to remove the finger from the source of heat. There is nothing inherrent in neurons which governs the direction of information in it; that is, the same neuron works as sensory and motor neuron.
The information flow . is essentially an electrical, phenomenon as has been evidenced by experimental facts and few models are proposed to analyse this complex phenomenon.