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प्रश्न
Answer the following questions briefly:
How are the cytons and axons placed in the brain and the spinal cord?
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उत्तर
In brain cyton are placed outward and axon bundles internally.
In spiral cord it is reversed.
Grey matter is where neutrons bodies are located. White matter are the region which have axons.
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संबंधित प्रश्न
Draw a labelled diagram of the following:
Neuron
Draw neat and labelled diagrams of a myelinated neuron
Name the following :
The layer of the eyeball that forms the transparent Cornea
Name the following:
The third neuron that is involved in reflexes, other than simple reflex.
Write whether the following is true or false:
Axon of one neuron communicates with other nerve cell through synapse.
Differentiate between:
A Sensory neuron and a Motor neuron (function)
Compare and contrast.
Sympathetic Nervous System and Parasympathetic Nervous System
Each branch of the axon terminates as a bulb-like structure called ______
Write one word for the following:
The kind of nerve carrying impulses from the brain to a gland or muscle.
The figure given below is the basic structural and functional unit of the human nervous system. Study the diagram and answer the following questions:
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- 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.
