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Digestive system

Digestive system . By: Juliana Marulanda . What is it? . The Digestive system prepares food for use by all body use . Digestion. The Chemical Break down of biological molecules into there compose part. . function. Produces various chemical to break down the food

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Digestive system

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  1. Digestive system By: Juliana Marulanda

  2. What is it? • The Digestive system prepares food for use by all body use .

  3. Digestion • The Chemical Break down of biological molecules into there compose part.

  4. function • Produces various chemical to break down the food • Filters out of harmful substances . • Get rid of wastes

  5. Digestion1 • Mechanical Digestion: • The physical braking apart of food.( changes form of food ) • chew • tear • Mash • mix

  6. Digestion2 • Chemical Digestion: • when chemicals called Enzymes breaks up the food you eat so you can digested or your digestive system can absorb.

  7. Digestions • Both kinds of digestion occur in your mouth. • Cuing mechanically breaks food apart wail an enzyme in your spit called Salivary Amylase breaks up carbohydrates • When you chew the food softens and the tong push it to the opening of your Esophagus ( back of your mouth) the esophagus squishes the food down though the stomach your stomach. • In your stomach food is turned and mixed with enzymes and other digestive juices ( like hydro chloric gases) • This Chemicals break down protein and fats .

  8. The digestion tract • a long muscular tube with many sections and areas • Begins with the mouth and ends with the anus

  9. Parts of the digestive tract • Mouth • Pharynx • Esophagus • Stomach • Small Intestine • Large Intestine

  10. Louth • Mixes and rolls the food into tiny mashed bits • Pushes the little pits toward the Pharynx and into the esophagus when swallowing

  11. Esophagus • A straight muscular tube that is about 10 inches long which connects the mouth with the stomach • Food takes about 4 to 8 seconds as it passes through to the stomach • They have a wall that moves liquids and foo safely and smoothly down(Peristalsis)

  12. Stomach • J shaped muscular sac • Foods is mixed with gastric juices ( hydrochloric and enzymes) secreted from the stomach wall

  13. Small intestine • Long (20 ft.) coiled tube beneath the stomach • It take hours to complete the journey • Absorbs martials cross the mucosa into the blood then other parts of the body for storage or further chemical changes

  14. Small intestine • Has three parts: • Duodenum: upper part about 10 in connects to the stomach . Where the digestive juices from the pancreas and liver combine with chime making it thin and watery • Jejunum: about 8 ft. • Ileum: about 12 ft.

  15. Large intestine • Large dimer, but shorter ( 5 ft.) • Water is absorb from the undigested food making the waste harder until it becomes solid • Waste stays 1-12 hours • Waste is pushed into the expanded portion (rectum) of the large intestine • Solid waste stays in the rectum until it is excreted though the anus as feces • Appendix hangs on the right side of the large intestine

  16. Path of digestion • Mouth • Pharynx • Esophagus • Stomach • Small intestine • Large intestine • Anus

  17. Bibliography • http://humanbodycng7.wikispaces.com/3.+Digestive+System • http://www.brainpop.com/health/bodysystems/digestivesystem/preview.weml • http://digestive.niddk.nih.gov/ddiseases/pubs/yrdd/ • http://kidshealth.org/parent/general/body_basics/digestive.html • http://www.yakult.com.au/resources/flash/flash_digestiveDD100.html

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