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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.
State whether the following statement is true or false.
A tissue is formed of only one type of cells.
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:
neuron
Draw and label a neuron.
Distinguish between the following pair in one or two sentences for axon and dendrite.
Name the tissue associated with the following:
Conduction of nerve impulse.
The ______ is a single, long fiber-like process that develops from the cyton.
