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Digestive System

Digestive System. By Hannah King and Nick Kennedy. Overview. The Digestive System is in charge of breaking down and absorbing nutrients into the blood This allows us to build and fuel our body cells. Anatomy/Physiology. http://en.wikipedia.org/wiki/Digestion.

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Digestive System

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  1. Digestive System By Hannah King and Nick Kennedy

  2. Overview • The Digestive System is in charge of breaking down and absorbing nutrients into the blood • This allows us to build and fuel our body cells

  3. Anatomy/Physiology http://en.wikipedia.org/wiki/Digestion • Mouth: Where food enters and food breakdown begins • Tongue: Muscle used for chewing • Pharynx: Passageway for food, fluids, and air • Esophagus: Passageway for food to the stomach • Liver: Large gland that produces bile which emulsifies fat • Stomach: Stores and breaks down food

  4. Anatomy/physiology • Gallbladder: Stores bile • Pancreas: Produces enzymes to break down food and the hormones insulin and glucagon • Small Intestine: Where chemical digestion begins • Large Intestine: Main organ for absorption of nutrients into the blood stream • Anus: Sphincter that releases waste

  5. Key Terms • Enzymes are what break down food • Food moves through tract because of peristalsis • Villi and microvilli found in the small intestine are responsible for absorbing food • The three sections of the small intestine are: • Duodenum • Jejunum • Ileum • Mechanical Digestion is the basic form of digestion using no chemicals • Found in the mouth • Chemical Digestion utilizes enzymes to break down food • Found in stomach and small intestines

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