1.

What are the main properties of nervous tissue?

Answer»

The nervous tissue has two outstanding properties: excitability and conductivity. 

(i) Excitability: It is the ability of the nerve cells and fibres to enter into an active state called the state of excitation in response to a stimulus. Excitation arises at the receptors on account of various stimuli such as light, temperature, chemical, electrical or pressure which constantly act on the organisms. 

(ii) Conductivity: The excitation does not remain at the site of its origin. It is transmitted along nerve fibres. The transmission of excitation in a particular direction is called conductivity.



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