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The Mouth

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					The Digestive System

  Presented by Jake,
        Hunter,
   Luis, and Gaurav
Digestive System Diagram
                The Mouth
 The digestive system
  starts in the mouth.
 There are four kinds
  of teeth, incisors
  canines, premolars,
  and molars.
 After food is
  chomped up it enters
  the esophagus.
 Open   Wide
              The Esophagus
   The Esophagus is a        The rumbling in your
    ten inch long muscle       stomach is actually
    connecting the mouth       peristaltic movement.
    and stomach.              The next step is the
   It uses peristaltic        stomach.
    movement which is
    squeezing down.
               The Stomach
 The stomach is one of
  the main parts of the
  digestive system.
 It uses gastric juices
  to turn the food into a
  liquid.
 Then the food enters
  the small intestine.
                 Small Intestine
   The small intestine
    puts food into the
    blood.
   When food goes into
    it, juices from the liver
    and pancreas digest
    the food.
   The small intestine is
    about 20 feet long.
            Large Intestine
 Liquids left over from stomach are
  completely removed here
 Its then called well lets just say “number
  2”
 The large intestine is about 5 feet long
 It then goes through the rectum and
  comes out of the anus goes into 
        Pancreas                  Liver
 makes enzymes which      makes bile, breaks
  break down food           down fat in the small
 Enzymes in intestines     intestine
  break down protein       Help break up globs
  into amino acids and      of fat so enzymes in
  carbohydrates into        the small intestine
  simple sugars usually     can convert fat
  glucose                   molecules into fatty
                            acids and glycerol
Fast Facts About The Digestive System
   We eat 500kg of food per year
   The esophagus is about 25cm long
   In the mouth, food is either warmed or cooled to
    a more suitable temperature
Comparison
Digestive                      Excretory
    breaks down solids       Breaks down liquids
   7 main organs             5 main organs
   able to break down        Can only break down
    liquids                    liquids
   Helps by not putting      Helps purify blood
    wastes into blood
    stream
                    Bibliography
   Google/Live Search-for images
   Science book, California Science
   www.library.thinkquest.org
   www.kidskonnect.com
   www.kidshealth.com
   www.medtropolis.com
   and of course All of our




             Brains
             The
GLORIOUS

           END

           Fin   the cat is just awesome

				
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posted:4/18/2011
language:English
pages:12