Describe the structure of a multipolar neuron? Ans. Neurons are the 'functional units' of nervous tissue. Multipolar neurons usually comprise one axon and two or more dendrites. In our body me 1. 2 A neuron generally comprises of a 'cell body' with one to many dendrites and a single axon. neurons are multipolar. Multipolar neurons includes (A) Cell body (B) Dendrites boold to (C) Axon (A) Cell Body: It is also known as perikaryon, cyton or soma. It has abundant cytoplasm which is granular and a large spherical nucleus. The cytoplasm further contains Nissil bodies (sites for protein synthesis), neurofibrils and lipofuscin granules. (B) Dendrites: Various short, branched processes which develop from the cyton are called dendrites. These dendrites also have nissl bodies and neurofibrils. They transmit nerve impulses towards the cell body. tallNode of Ranvier (C) Axon . An axon is a single, long, cylindrical process that arises from a region of the cyton termed as axon hillock. Plasmalemma of an axon is known as axolemma and the cytoplasm is known as axoplasm, which has neurofibrils. Nissil bodies are absent here.An axon can develop collateral branches, Distally it branches into many fine filaments known as telodendria (axon terminals) that end in bulb like structures known as synaptic knobs or terminal boutons. Unit-2 Synaptic knobs posses 'synaptic vesicles' which contain chemicals known as neurotransmitters. Axons are classified based on the presence or absence of myelin sheath, (a) Myelinated axons (b) Non myelinated axons. Portions of myelinated nerve fibres which do not contain myelin sheaths are known as Nodes of ranvier Explain this to me like a u explaining to a 5 year old kid

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