Answer;
Nervous system
Explanation;
-Nervous system is an organ system that controls all other body systems; consists of brain, spinal chord, (CNS) and peripheral nerves (PNS).
-It carries messages to all parts of the body and controls your senses and also enables you to taste, smell, hear, think, write, and move.
The sympathetic nervous system primarily functions to activate physiological changes that occur during the fight or flight response.