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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.
Put a tick (✓) against the most appropriate alternative in the following statement.
The fine branches given out from the cell body of a nerve cell are __________.
State whether the following statement is true or false.
A tissue is formed of only one type of cells.
State whether the following statement is True or False.
Permanent tissue is made up of undifferentiated and dividing Cells.
Name the kind of tissue that Conducts messages from one part of the body to another
Define the term of neuron
Answer in detail.
What is the difference between an organ and an organ system?
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.
Which of the following is not found in a neuron?
