Nervous tissues and propeties

1.	Nervous tissues and propeties
Answer» The nervous tissue has two outstanding properties : excitability and conductivity.(a) 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.(b) Conductivity : The excitation does not remain atthe site of its origin. It is transmitted along nerve fibres. The transmission of excitation in a particular direction is called conductivity

Discussion