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Digestive system

Digestive system. Mouth. Length: 4” Time: 5 – 30 sec Functions: mastication = chewing sense of taste salivary amylase breaks down carbohydrates Name of Food: food Type of Digestion: mechanical, chemical. Esophagus. Length: 10” Time: 10 sec Functions:

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Digestive system

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  1. Digestive system

  2. Mouth • Length: 4” • Time: 5 – 30 sec • Functions: • mastication = chewing • sense of taste • salivary amylase breaks down carbohydrates • Name of Food: food • Type of Digestion: mechanical, chemical

  3. Esophagus • Length: 10” • Time: 10 sec • Functions: • peristalsis = muscles squeeze food to stomach • Name of Food: bolus • Type of Digestion: propulsion

  4. Stomach • Length: 9” • Time: 3 – 4 hrs. • Functions: • churns and mixes food • breaks down proteins • releases HCl and pepsin • Name of Food: chyme • Type of Digestion: mechanical, chemical

  5. Liver • Length: -- • Time: -- • Functions: • produces bile = breaks down fats • Name of Food: -- • Type of Digestion: chemical

  6. Gall Bladder • Length: -- • Time: -- • Functions: • stores bile • Name of Food: -- • Type of Digestion: chemical

  7. Pancreas • Length: -- • Time: -- • Functions: • produces lots of digestive enzymes that break down all categories of food • Name of Food: -- • Type of Digestion: chemical

  8. Small Intestine • Length: 22’ 8” • Time: 3 hrs. • Functions: • nutrient absorption • break down carbohydrates, fats, proteins • Name of Food: chyme • Type of Digestion: chemical

  9. Large Intestine • Length: 5’ • Time: 18 hrs. – 2 days • Functions: • absorption of water back into the body • Name of Food: feces • Type of Digestion: water absorption

  10. Rectum • Length: 6” • Time: -- • Functions: • eliminates indigestible food • Name of Food: feces • Type of Digestion: defecation

  11. Anus • Length: -- • Time: -- • Functions: • ring of muscle at the end of the rectum • external body opening • Name of Food: feces • Type of Digestion: defecation

  12. mouth  esophagus  stomach  small intestine  large intestine

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