Describes the structure of multipolar neuron
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A multipolar neuron (ormultipolar neurone) is a type of neuron that possesses a single axon and many dendrites (and dendritic branches), allowing for the integration of a great deal of information from otherneurons. These processes are projections from the nerve cellbody.
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MULTIPOLAR NEURONS are the common neurons of the body .
- Multipolar neurons consists of.
✨.Dendrites
✨.Cell body
✨.Axon.
➡ Dendrites.
- They are short branched process which arise from cell body.
- They contain Nissel granuel and neurofibrils.
- They conduct nerve impulse towards the cell body (afferent)
➡ Cell body .
- It is also called cyton or soma or perikaryon.
- It includes nissl granules (RER) for protein synthesis.
- It contains large spheric nucleus,Neurofibrils &Lipofuscin granules.
➡ Axon .
- It is a long cylindric thread like structure which arise from cell body.
- The junction between cell body and axon is called Axon hillock.
- The plasma lemma is called axolemma.
- The cyoplasm is called axoplasm.
- Microfibrils are present .Nissl bodies are absent.
- The terminal part of axon is branched into small filaments called telodendria.
- telo dendria have knob like endings called synaptic knobs or terminal boutons.
- synoptic knobs contain neuron transmitters (acetyl chlorine)
- Axon carries nerve impulse from the cell body to the next neuron (efferent)
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