And The Digestive System
Digestion is the process a body uses to turn food into a usable source of energy. For humans and most mammals, digestion starts in the mouth, where enzymes that aid in digestion are released in saliva and help prepare food for further digestion by the stomach and intestines. Acids in the stomach break down complex carbohydrates, such as starches, and smaller particles are absorbed into the bloodstream. The unabsorbed particles then move to the small intestine, where they are further broken down and either absorbed by the intestinal wall to immediately be used as energy or to be stored as energy reserves (fat). What is left is moved to the large intestine for the final stages of absorption and digestion, and the unusable waste is expelled from the body as excrement.
Systems that work with the Digestive System in the process of Homeostasis
The Muscular System
The Muscular System helps the Digestive System by moving the food throught the digestiong track.
The Circulatory System
The Circulatory System works with the Endocrine system to control the speed of digestion.
The Nervous System
The Nervous System tells the muscular system to contract so that we are able to digest the food.