Step-by-step explanation:
PNS stands for the peripheral nervous system. The nervous system is divided into 2 systems. The first one is called the somatic system and helps make decisions like washing your face or walking leisurely in the school's halls. The second one is called the enteric system and takes care of breathing and heartbeat patterns when you are sleeping and awake. The Sympathetic Nervous System reacts to stress and is best known as the "flight or fight" response. The Parasympathetic Nervous System acts when you are relaxed and occurs talking amongst friends or writing notes. An example of the enteric system is when you are eating some delicious Hot Cheetos during a movie.