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Question
Explain the structure of a neuron with the help of a labelled diagram.
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Solution
Nervous tissue is made up of highly specialized cells called nerve cells or neurons.
Each neuron has the following parts:
- Cyton or cell body contains a central nucleus and cytoplasm with characteristic deeply stained particles, called Nissl's granules (i.e., clumps of ribosomes).
- Dendrons are short branches arising from the cell body and further branching into dendrites.
- Axon or nerve fibre is a single, long cylindrical process of uniform diameter. It forms fine branches terminally.
- Each such twig-like branch of the axon ends in a swollen structure, called synaptic knob or bouton.
Nervous tissue is made up of highly specialized cells called nerve cells or neurons.
Each neuron has the following parts:
- Cyton or cell body contains a central nucleus and cytoplasm with characteristic deeply stained particles, called Nissl's granules (i.e., clumps of ribosomes).
- Dendrons are short branches arising from the cell body and further branching into dendrites.
- Axon or nerve fibre is a single, long cylindrical process of uniform diameter. It forms fine branches terminally.
- Each such twig-like branch of the axon ends in a swollen structure, called synaptic knob or bouton.
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