Talk about the roles of nervous tissue

The nervous system is the major regulatory system and communication network of the body. It is specialized in reception, treatment, storage and transfer of information received either from the external environment or from the organism itself. It accomplishes therefore 3 basic functions: the sensory function, by detecting any internal or external body modification, the integrative function, by interpreting the detected changes, and finally the motor function by reacting to the interpretation through addressing to the effector organs (muscles and glands) the orders necessary for the individual life and the species survival.