The document discusses the major components of the human digestive system including the esophagus, stomach, small intestine, large intestine, gallbladder, liver, and pancreas. It describes the functions of each part in breaking down and absorbing nutrients from food. Maintaining a healthy digestive system requires eating a diet high in fiber and water, chewing food well, and limiting fatty foods. The entire digestive process takes approximately 24 hours from eating to elimination.

1. The Digestive System
Presented by Amir Sami

2. COMPONENTS
 Esophagus
 Stomach
 Small Intestine
 Large Intestine
 Gall bladder
 Liver
 Pancreas

3. ESOPHAGUS
The tube that connects
your mouth and your stomach
o Length- 25cm
Esophagus

4. STOMACH
o A stretchy bag that holds your food after you eat
o Helps to break food into smaller pieces so your
body can use it for energy and nutrition
oCapacity – 2.5L
oParts(4)
• Cardia
• Body
• Fundus
• Pylorus

5. SMALL INTESTINE
Food stays in your small intestine for 4 to
8 hours.
Continues to digest food.
Length – 6m
o Parts-(3)
• Duodenum
• Jejunum
• Ileum
Small Intestine

6. LARGE INTESTINE
Gets waste from small intestine
 Waste stays for 10 to 12 hours
Length- 1.5m
 Parts- (3)
• Colon
• Rectum
• Anal canal.
Large Intestine

7. GALL BLADDER
Storage tank for bile (a greenishyellow
liquid) that helps your body break down
and use fats
Located under your liver
Shaped like a pear
Gall bladder

8. LIVER
Factory for antibodies and bile
Stores vitamins and sugars until
your body needs them
Weight – 1.5kg
Liver

9. PANCREAS
Helps you digest food by breaking down
sugars.
 It is an Endocrine system.
Pancreas

10. FUNCTIONS
Digest the food we eat.
Take the nutrients out of your food so
your body can use it.

11. HEALTHY HABITS
Eat foods that are high in
fiber like fruits and
vegetables

12. Drink plenty of water
 Drink 3 – 4 L Water per day

13. Chew your food completely
before you swallow

14. Avoid foods high in fat

15. INTERESTING
Food is in your digestive
system for about 24 hours

16. Your stomach stretches
when you eat like a balloon
being filled with air

17. o You have a trap door called the
epiglottis to cover your windpipe
when you swallow.