NCERT Solutions for Class 9 Science Chapter 6
Tissues
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-78
Questions No-2
What does a neuron look like?
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NCERT Solutions for Class 9 Science Chapter 6
Tissues
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-78
Questions No-2
A neuron consists of a cell body with a nucleus and cytoplasm. It has two important extensions known as the axon and dendrites. An axon is a long thread-like extension of nerve cells that transmits impulses away from the cell body. Dendrites, on the other hand, are thread-like extensions of cell body that receive nerve impulses. Thus, the axon transmits impulses away from the cell body, whereas the dendrite receives nerve impulses. This coordinated function helps in transmitting impulses very quickly.
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Neuron or nerve cell is a unit of nervous tissue (brain, spinal cord and nerves) which serves to transmit messages in our body. A neuron consists of cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Usually, each neuron has a single long part called the axon, and many short branched Processes (parts) called dendrites.