Q5)Draw the structure of a neuron and explain its function.

A neurons consists of three parts:
(i) Cell body: It is a typical animal cell which contains cytoplasm and a nucleus.
(ii) Dendrites: A number of long and thin fibres comes out from the cell body of the neurons, they are nerve fibre. The shorter fibres on the cell body of neurons are called dendrites.
(iii) Axon: The longest fibre on the cell body of neurons is called axon. It has an insulating and protective sheath (or cover)of myelin around it.
Function of Neuron:-
(I) The impulses of information travel from dentrites to the cell body, and then along the axon to its end.
(ii) These impulses cross the synapse. At the end , the impulses travel form one neuron to the other up to the spinal cord or to the concerned part of the body.