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The Digestive System


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The Digestive System

  1. 1. The Digestive System Macobia Harris EDTC 640
  2. 2. The Digestive System <ul><li>What does it do? </li></ul><ul><li>The Digestive system digests food to use as energy for your body. </li></ul><ul><li>  </li></ul><ul><li>There are seven main organs that make up the digestive system. They are: </li></ul><ul><li>  </li></ul><ul><li>- The Oral Cavity or (Mouth) </li></ul><ul><li>- The Esophagus </li></ul><ul><li>- The Stomach </li></ul><ul><li>- The Small Intestine </li></ul><ul><li>- The Large Intestine or (Colon) </li></ul><ul><li>- The Rectum </li></ul><ul><li>- The Anus </li></ul>Let's take a look at each main organ in order to see how they work!
  3. 3. Organs The Oral Cavity or (mouth) <ul><li>Is the first portion of the digestive system that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces (chewing) and mixing them with saliva. </li></ul><ul><li>  </li></ul><ul><li>Saliva is secreted from the mouth to help break down the food. </li></ul>Oral Cavity or (mouth)------
  4. 4. Organs The Esophagus <ul><li>Is the muscular tube in the throat that connects your mouth and your stomach. </li></ul>Esophagus---------
  5. 5. Organs Stomach <ul><li>Is a elastic-like bag that holds your food after you eat. </li></ul><ul><li>  </li></ul><ul><li>The stomach receives food from the esophagus. It stores and digests food by breaking the food into smaller pieces so that your body can use the vitamins and minerals from the food for its energy and nutrition. </li></ul>
  6. 6. <ul><li>Is the tube that continues to absorb the nutrients from the food obtained from the stomach. </li></ul>Organs Small Intestine
  7. 7. <ul><li>Is the tube that receives and stores the waste or undigested food from the small intestine. The large intestine prepares the undigested food to be ejected from the body. </li></ul>Organs Large Intestine or (Colon)
  8. 8. <ul><li>Is the organ that stores the solid feces. Feces is the waste product prepared in the large intestines that is to be ejected through the anus. </li></ul>Organs Rectum
  9. 9. <ul><li>Is the organ in which the feces pass through to get ejected out of the body. </li></ul>Organs Anus
  10. 10. The Digestive System Why is the Digestive System important? <ul><li>Food is not the form of energy the body can use. </li></ul><ul><li>  </li></ul><ul><li>Food must be changed into a form of energy that can be used by the body. </li></ul><ul><li>  </li></ul><ul><li>This energy is changed and then absorbed by the blood and carried through out the body. </li></ul>
  11. 11. Digestive System: Summary <ul><li>Functions </li></ul><ul><li>  </li></ul><ul><li>Digests food </li></ul><ul><li>  </li></ul><ul><li>Absorbs nutrients for the body </li></ul><ul><li>Organs </li></ul><ul><li>  </li></ul><ul><li>- Esophagus </li></ul><ul><li>- Stomach </li></ul><ul><li>- Small Intestine </li></ul><ul><li>- Large Intestine </li></ul><ul><li>- Rectum </li></ul><ul><li>- Anus </li></ul>
  12. 12. Review <ul><li>Directions: </li></ul><ul><li>Try to name the part of the lettered Digestive System organs that have been reviewed so far. </li></ul>
  13. 13. References <ul><li>National Library of Medicine. (2009). . </li></ul><ul><li>  </li></ul><ul><li>Wikipedia. (2009). </li></ul><ul><li>  </li></ul>