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Topic/Objective: Name: Understand the structure and function of the digestive system Class/Period: Date: Essential Question: ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ ________________ Digestive System Notes Functions 1. ____________________________________________________ ________________________________________________________ 2. Moves digested food from the digestive tract into the circulatory system through the process of absorption. 3. ____________________________________________________ ________________________________________________________ Structure # Name 1 Mouth 2 Description and Function ___________________________________ ___________________________________ This trap door belongs to both the respiratory and the digestive systems. Prevents food and fluids from draining into the lungs. 3 Liver ____________________________________ _______________________________________ _________________________________ 4 Gall bladder Stores and concentrates bile, and then releases it into to the duodenum to help absorb and digest fats. 5 Bile duct The duct __________________________ __________________________ as it passes along to the duodenum of the small bowel. The large intestine passes the remaining essential nutrients into the bloodstream and the storage and elimination of waste left-over. Appendix Current theory suggest that it is part of ________ _______________________________________ _______________________________________ _______________________________________ 6 7 8 The fluid helps soften up food, the first chemical ______________ action along the digestion trail. ______________ ______________ 9 Muscle that is used for rolling food around your ______________ mouth so your teeth can work best. ______________ ______________ 10 Esophagus _______________________________________ ______________ _______________________________________ ______________ _______________________________________ ______________ ______________ ______________ 11 Stomach _______________________________________ ______________ _______________________________________ ______________ ______________ 12 The first section of the twenty-two food long small ______________ intestine. It is largely responsible for the continuing ______________ food breaking-down process. ______________ ______________ 13 The body’s sugar control board. Both insulin and ______________ glucagon are produced here. It secretes digestive ______________ ______________ enzymes that break down protein, fat, and ______________ carbohydrates. ______________ 14 The small bowel has 3 main sections: the duodenum, ______________ jejunum, and ileum. The duodenum breaks down food ______________ into liquid form and the jejunum and ileum absorb ______________ nutrients into the bloodstream. ______________ 15 Rectum _____________________________________ ______________ ______________ Summary: _______________________________________________________________________ ______________ _______________________________________________________________________________ ______________ ______________ ______________ ______________ ______________ ______________ ______________ __