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प्रश्न
Write one word for the following:
A bundle of axons enclosed in a tubular sheath.
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उत्तर
Nerve
संबंधित प्रश्न
Draw a labelled diagram of the following:
Neuron
Differentiate between Dendrites and axons.
Mention the exact location of the Myelin sheath
Given below is a structure, write its special functional activity.
Myelin sheath and ……………
Explain the following term :
Motor nerve
When the potential across the axon membrane is more negative than the normal resting potential, the neuron is said to be in a state of ______.
At the end of repolarization, the nerve membrane gets hyperpolarized. Why?
Nerve cells do not possess ______
What are the gaps between adjacent myelin sheaths called?
The figure given below is the basic structural and functional unit of the human nervous system. Study the diagram and answer the following questions:
 |
- Write the technical term for the diagram.
- Name two organs of our nervous system where these cells are richly found.
- How are these cells significant for us?
- Name the cell organelle that is absent in these cells and how does it affect our body metabolism?
- Redraw the same figure and label the following Perikaryon, Axon, Dendrites, Myelin sheath and Node of Ranvier.
