THE DIGESTIVE SYSTEM

1
THE DIGESTIVE SYSTEM

• What is it and how do we take care of it?

2
What is the digestive system?

• It is a complex series of organs and glands that
  processes food.
• In order to use the food we eat, our bodies must
  break down the food into smaller molecules that
  must be processed.
• Our bodies excrete the waste.
• The digestive system is a long, twisting tube
  that runs from the mouth to the anus.
• It produces or stores digestive chemicals.

3
WHERE DOES IT ALL BEGIN?

• The mouth.
• Once food is broken down by chewing the digestion
  has

BEGUN
4
From the mouth to the esophagus!

• The chewing is complete and the food is
  swallowed.
• The esophagus uses muscles called PERISTALSIS.
• These muscles help the food travel from the
  esophagus to the stomach.

5
The chewed food has made it to the stomach.

• The food is churned while in the stomach.
• While churning the food is soaked in a liquid
  acid called GASTRIC ACID.
• The food is now called CHYME, food soaked in
  gastric acid.

6
The next stops are the small and large intestine.

• The small intestine continues to break down the
  food.
• Bile that is produced in the liver and stored in
  the pancreas helps break the food down.

• The large intestine separates some of the water
  and electrolytes from the food.
• There are several microbes in the large intestine
  that help in the process of digestion.

7
Where does it all end?

• The anus.
• The waste is stored in the rectum and then
  excreted when you go to the bathroom.

8
(No Transcript)
9
FUN FACTS

• Your intestines are at least 25 feet long!
• Chewing takes 5-30 seconds!
• Swallowing takes 10 seconds!
• Food sloshes in the stomach for 3-4 hours!
• Food HANGS OUT in the intestine 18 hours-2 days!
• In your lifetime, your digestive system can hold
  as much as 50 tons!

10
THATS THE DIGESTIVE SYSTEM!

• MOUTH
• ESOPHAGUS
• STOMACH
• SMALL AND LARGE INTESTINE
• ANUS