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The Digestive System Graphic Organizer Why Am I Hungry? Functions of the Digestive System: 1.Breakdown food into ___________________ that the body can use 2.Absorb nutrients necessary for ______________, growth and __________________ 3.Rid the body of ____________ wastes Functions of Nutrients You need food to provide _______________for your body. Food contains Nutrients that are important substances that enable you to move, grow, and maintain homeostasis. Examples of Nutrients: Proteins: Carbohydrates: Digestion: What happens my lunch? Fat: Water: Movement of Food through the Digestive System: Food is moved in wavelike contractions called _______________ ________________Glands can be found throughout the entire system to keep food moist. Mouth : Teeth break food down via mechanical digestion Saliva _______________ food and begins chemical digestion Esophagus: Muscle contractions of __________________ move solid food from the throat to the stomach in about eight seconds. Liquids take about two seconds! Before you can use nutrients, food most be broken down into _____________ substances. Digestion is the process of _______________ ________________ food into usable materials. Types of Digestion Mechanical: Occurs in __________________ Chemical: Liver: Largest Internal Organ. Filters blood. Produces Bile which breaks down fat Gallbladder: Stores bile to be sent to the small intestine. Pancreas :Produces digestive juices that help break down food in small intestine. Stomach: Strong muscles in the stomach_____________ and mash food. Stomach acid __________________ down food. Small Intestine: Partially digested food moves from ________________. Uses digestive juices from pancreas, liver, and gallbladder to breakdown nutrients. Tiny folds called villi that absorb nutrients. Large Intestine: Water and other nutrients are absorbed. Tightly packs waste and sends it to the rectum for ________________