Question

What is neuron and how is it helpful

Answer 1

Neuron :

• The information from environment is detected by the nerve cells called neurons.

• They are structural and functional unit of the nervous system.

• A neuron is the longest cell of human body.

• The nervous tissue is made up of network of nerve cells or neurons.

• These are specialised for conducting information through electrical impulses from one part of the body to another.

Structure of neuron or nerve cell :

1》Cell body or Cyton - It is broad rounded part of neuron. It has a central nucleus, abundant cytoplasm and various cell organelles except centrioles.

2》Dendrites - There are the protoplasmic, branched processes of the cell body which receive and transmit stimulus.

3》Axon - These are long, fibre like cytoplasmic process. They conduct impulses away from the cell body. The Aon may be covered by a protective sheath called myelin sheath.

4》Nerve ending - There are fine branch like terminations of neuron.

Note :- picture attached from notebook.