Mouth and Oesophagus

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Mouth and Oesophagus

  1. 1. MOUTH / ESOPHAGUS By: Jazi Al-Thani & Shahad Younis
  2. 2. FUNCTION  The mouth is the beginning of the digestive system, digestion starts there. The smell of food triggers the salivary glands in your mouth to create saliva, causing your mouth to water. When you actually taste the food the saliva increases. Once you start breaking the food down into pieces small enough to be digested, other mechanisms come into play. More saliva is produced to begin the process of breaking down food into a form your body can absorb and use.
  3. 3. STRUCTURE
  4. 4. FUNCTION  The esophagus is the portion of the digestive tract that receives the food from your mouth, and carries food to the stomach. Its role is to get the food from the pharynx to the stomach.
  5. 5. STRUCTURE  The food enters the mouth and the mouth then starts to form saliva. The food then travels to the pharynx, which is like a passage way to the esophagus. The esophagus then takes all the food, liquids, and saliva down to the stomach.
  6. 6. ENZYMES  The enzyme amylase is found in the mouth, as well as the stomach and small intestine. Amylase is the main enzyme used to break down food.
  7. 7. WHAT IS DIGESTED AND HOW?  Starches, such as potatoes, pastas, and different snack foods (not sugars) are digested by the saliva and amylase in the mouth.
  8. 8. BIBLIOGRAPHY  http://www.oncologychannel.com/onc/Images/esophagus.gif  http://flipper.diff.org/app/pathways/info/2811  http://biology.about.com/library/organs/blpathodigest5.htm  http://umm.edu/programs/gi- hepatology/services/barretts/normal-function  http://www.webmd.com/digestive-disorders/digestive-system

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