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प्रश्न
Differentiate between Dendrites and axons.
उत्तर
| Dendrites | Axons | |
| 1. | The dendrite is a small projection arising from the neuron. It conducts the nerve impulse towards the cell body. | Axon is a single, long projection that conducts the nerve impulse away from cell body to the next neuron. |
| 2. | Nissl’s granules are present in dendrites. | Nissl’s granules are absent from axons. |
| 3. | They are close to the nerve body. | These are distal to the nerve body. |
| 4. | These are small and larger in number. | These are long and cylindrical at the base. |
| 5. | These carry the stimuli to the cell body. | They carry impulses from the cell body to other nerve cells. |
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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 layer of the eyeball that forms the transparent Cornea
Describe three kinds of nerves, giving the example of each.
Fill in the blanks:
A neuron consists of ________ , _________ and ________.
State whether the following statement is true (T) or false (F):
Each neuron consists of three parts called cell body, cyton and axon.
Mention the types of nerves found in humans.
Name the following:
The nerve which carry impulse from CNS to muscles.
How does an impulse travel across a synapse?
____________ are the building blocks of the nervous system.
____________ is the interconnection between two neurons or neuron with motor organ.
______ is the gap between the axon of one terminal neuron and the dendrites of next neuron.
Which nerves transmit impulses from the central nervous system towards muscle cells?
Label the parts of a neuron in the given figure.
In the following diagram choose the correct labelling for A, B, C, D and E respectively.
Identify the parts of a neuron which help the nerve impulse to travel towards the cell body.
Which of the following structures is absent in nerve cells?
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Axons : Nerve :: Cytons : ______.
Define the following term:
Nerve
