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Differentiate between Dendrites and axons. - Biology

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प्रश्न

Differentiate between Dendrites and axons.

फरक स्पष्ट करा
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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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पाठ 21: Neural Control and Coordination - Exercises [पृष्ठ ३२९]

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एनसीईआरटी Biology [English] Class 11
पाठ 21 Neural Control and Coordination
Exercises | Q 9.2 | पृष्ठ ३२९

संबंधित प्रश्‍न

Distinguish between Cranial nerves and spinal nerves.


Mention the exact location of the Lacrimal gland


Given below is a structure, write its special functional activity.

Myelin sheath and ……………


Write the function of Association neuron.


What are the advantages of having a nervous system?


Name the following:
The nerve which carry impulse from CNS to muscles.


Write whether the following is true or false:
Neurotransmitters are released on activation.


Assertion: The imbalance in concentration of Na+, K+ and proteins generates action potential.

Reason: To maintain the unequal distribution of Na+ and K+, the neurons use electrical energy.


______ carries the impulse towards the cell body.


What does the neural tissue consist of?


What are the different parts of the multipolar neuron?


Which cells are responsible for formation of myelin sheath?


In a neuron, conversion of electrical signal to a chemical signal occurs at/in


Write one word for the following:

The kind of nerve carrying impulses from the brain to a gland or muscle.


Any factor that can bring a change in the body of an organism is called ______.


Name the following:

Three types of neurons


Define the following term:

Nerve


Distinguish between the following pair:

Nerve impulse and flow of electricity (transmission and speed)


The figure given below is the basic structural and functional unit of the human nervous system. Study the diagram and answer the following questions:

  1. Write the technical term for the diagram.
  2. Name two organs of our nervous system where these cells are richly found.
  3. How are these cells significant for us?
  4. Name the cell organelle that is absent in these cells and how does it affect our body metabolism?
  5. Redraw the same figure and label the following Perikaryon, Axon, Dendrites, Myelin sheath and Node of Ranvier.

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