Q. 4 Illustrate the structure of neuron and explain with its basic components. class 11
Answers
Answer:
Neurons are the building blocks of the nervous system. They receive and transmit signals to different parts of the body. This is carried out in both physical and electrical forms. There are several different types of neurons that facilitate the transmission of information.
The sensory neurons carry information from the sensory receptor cells present throughout the body to the brain. Whereas, the motor neurons transmit information from the brain to the muscles. The interneurons transmit information between different neurons in the body.
Explanation:
Neuron Structure
A neuron varies in shape and size depending upon their function and location. All neurons have three different parts – dendrites, cell body and axon.
Parts of Neuron:
Following are the different parts of a neuron:
Dendrites
These are branch-like structures that receive messages from other neurons and allow the transmission of messages to the cell body.
Cell Body
Each neuron has a cell body with a nucleus, Golgi body, endoplasmic reticulum, mitochondria and other components.
Axon
Axon is a tube-like structure that carries electrical impulse from the cell body to the axon terminals that passes the impulse to another neuron.
Synapse
It is the chemical junction between the terminal of one neuron and dendrites of another neuron.
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Answer:
Refer the picture.
