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प्रश्न
Explain the structure of neuron with the help of a labelled diagram.
Explain the structure of a neuron. Draw and label the parts.
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उत्तर
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:
- 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.
- Dendron: They are short processes that arise from the cell body. They get further branched into dendrites.
- 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.
संबंधित प्रश्न
Name the tissue present in the brain.
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.
Define the term of neuron
Draw a labelled diagram of a neuron.
Draw and label a neuron.
Name the kind of cells found in the following place:
Brain
Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
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?
What is a nerve cell? Explain the importance of nervous tissue.
Give structure, types and functions in brief of the following:
Nervous tissue
