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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
State whether the following statement is true or false.
A tissue is formed of only one type of cells.
Name the kind of tissue that Conducts messages from one part of the body to another
Fill in the blank
The .................. or nerve fibers constitute the nerves.
Answer in detail.
What is the difference between an organ and an organ system?
Draw a labelled diagram of a neuron.
List one function of the following : 4.neuron
Name the kind of cells found in the following place:
Brain
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?
