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प्रश्न
What are the advantages of having a nervous system?
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उत्तर
- Keeps us informed about the outside world through sense organs.
- Enables us to remember, think, and reason out.
- Controls and harmonises all voluntary muscular activities such as running, holding, and writing.
- Regulates involuntary activities such as breathing and beating of the heart without our thinking about them.
संबंधित प्रश्न
Draw a labelled diagram of the following:
Neuron
The diagram given below is a representation of a certain phenomenon pertaining to the nervous system. Study the diagram and answer the following questions:
(i) Name the phenomenon which is being depicted.
(ii) Give the technical term for the point of contact between the two nerve cells.
(iii) Name the parts 1, 2, 3, and 4.
(iv) Write the functions of parts 5 and 6
(v) How does the arrangement of neurons in the spinal cord differ from that of the brain?
Name the following:
The third neuron that is involved in reflexes, other than simple reflex.
Differentiate between:
Rods and Cones.
Axons ____________.
What is the connective tissue covering around the nerve fascicle called?
In a synapse, the chemical signal is transmitted from ______.
Rearrange the following in the correct order of involvement in electrical impulse movement-
Synaptic knob, dendrites, cell body, Axon terminal, Axon
Name the following:
Three types of neurons
Name the following:
Three types of nerves.
