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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
A tissue is formed of only one type of cells.
State whether the following statement is True or False.
Only one type of tissue forms an organ.
State whether the following statement is True or False.
Permanent tissue is made up of undifferentiated and dividing Cells.
Write true or false of the statement. Rewrite the false statement correctly.
Short thread-like branches arising from the surface of the cyton are called axons.
State two characteristics of nerve cells.
Name the kind of cells found in the following place:
Brain
What is a nerve cell? Explain the importance of nervous tissue.
Give structure, types and functions in brief of the following:
Nervous tissue
Name the tissue associated with the following:
Conduction of nerve impulse.
Which of the following is not found in a neuron?
