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प्रश्न
Explain the structure of neuron with the help of a labelled diagram.
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उत्तर
Structure of neuron:
A neuron is the building material of the nervous tissue. Neurons are involved in conducting impulses to different parts of the body on receiving an external or internal stimuli. It consists of the following three parts:
(i) Cyton:
It refers to the cell body of neuron and is composed of nucleus and cytoplasm. Clumps of ribosomes called Nissl's granules are distributed in its cytoplasm.
(ii) Dendron:
They are short processes that arise from the cell body. They get further branched into dendrites.
(iii) Axon (nerve fibre):
It is the long and cylindrical part of the cell that forms fine branches terminally. Each branch of axon is swollen at an end, forming a synaptic knob (bouton) that contains acetylcholine (neurotransmitter) filled vesicles.
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संबंधित प्रश्न
Name the tissue present in the brain.
State two characteristics of nerve cells.
Draw and label a neuron.
Distinguish Between the Following Pairs in One Or Two Sentences (F) Axon and Dedrit
Name the kind of cells found in the following place:
Brain
Study the diagram given below and then answer the question that follows:
Identify the cell.
Study the diagram given below and then answer the questions that follow:
Where is this cell likely to be found in the human body and what is its function?
Differentiate between:
Nervous tissue and Nervous system
Give structure, types and functions in brief of the following:
Nervous tissue
Which of the following is not found in a neuron?
