Transcript The Digestive System

The Digestive
System
What is the
Function?
• Produces various chemicals
to break down the food.
• Filters out harmful
substances.
• Gets rid of solid wastes.
– Mouth
– Esophagus
– Stomach
– Small Intestine
– Large Intestine
Helpers
TRACT
The Digestive Tract
Where does food pass
through?
• Gall Bladder
• Liver
• Pancreas
What is the
Esophagus
• the tube that connects
your mouth to your
stomach
What is the
Stomach
• A stretchy bag that holds your food
after you eat (temporary storage)
What is the function of your
Stomach?
• Helps to chemically break food into
smaller pieces so your body can use it
for energy and nutrition
Esophagus
Stomach
What is the
Small Intestine
• Connected to the stomach and large
intestine.
• Tube that is 20 feet long.
• Continues to digest food
• Food stays in your small intestine for
4 to 8 hours
Small
Intestine
What is the Large
Intestine
• Continues the digestion process –
absorbs water and vitamins
• Tube that is 5 feet long
• Waste stays for 10 to 12 hours
Large Intestine
What is the function
of the Liver
• Factory for antibodies and bile
• Largest organ WITHIN the body
• Stores vitamins and sugars until your
body needs them
• Food does NOT pass through this
organ
Liver
What does the Gall
Bladder do?
• Storage tank for bile which helps
your body break down and use fats
• Located under your liver
• Shaped like a pear
Gall
Bladder
What is the function
of the Pancreas?
• Helps you digest
food by breaking
down sugars
• Produces insulin
• Drink plenty of water
• Chew your food completely
before you swallow
Avoid foods high in fat
Interesting Facts
• Food is in your digestive
system for about 24 hours
• You have a trap door called
the epiglottis to cover your
windpipe when you swallow.
• Your stomach mashes your
food the way a baker kneads
dough for bread.
What are the 2 types of
Digestion?
• Mechanical
• Chemical
What is Mechanical
Digestion?
Mechanical
– Changes the physical form of
food
• Chew
• Tear
• Grind
• Mash
• Mix
What is Chemical
Digestion?
• Chemical
– Changes the chemical composition of food
with the aid of digestive enzymes
– Breaks large molecules of food into very
tiny molecules that can be absorbed and
used by the cells in the form of nutrition.