450702437-Parts-functions-of-Digestive-System-ppt.ppt

Science Digestive system

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THE DIGESTIVE SYSTEM

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OBJECTIVESOBJECTIVES
1.1.Identify the organs that make up the Identify the organs that make up the
digestive system.digestive system.
2.2.Describe the coordinated functions of Describe the coordinated functions of
the organs of the digestive system.the organs of the digestive system.
3.3.Trace the path of food as it is being Trace the path of food as it is being
digested.digested.

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•What have you eaten today?
•Why did you choose to eat
those foods?
•What happened to your food
after you ate it?

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Lets Take A Lets Take A
Journey Of The Journey Of The
Digestive System.Digestive System.

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What does the Digestive
System do ?
The digestive system
digests the food we eat.

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MOUTH
Digestion begins
when food enters
the mouth.
It is physically
broken down by
the teeth.

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ESOPHAGUS
the tube that
carries food,
liquids and
saliva from
the mouth to
the stomach.

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STOMACH
Process and
transport food.
Has thick muscles
in its wall. These
contract to mash
the food into a
water soup called
chyme.

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SMALL INTESTINE
The small
intestine digests
all the nutrients.
Major Nutrition
takes place here.

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LARGE INTESTINE
Balance water is
absorbed in Large
Intestine
The large intestine
takes out the
waste.

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ANUS
The rectum is
where feces are
stored until
they leave the
digestive
system through
the anus .

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ACTIVITY

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My Life as a Hershey’s Bar
(A Story About Digestion)

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END

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How does the digestive
system break down food
to nourish the body?

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1.1.
2.2.
3.3.
4.4.
5.5.
6.6.

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MATCH THE ORGANS WITH ITS DEFINITION

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Why is the digestive
system important to
other body systems?

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Identify what part of the
digestive system performs each
of the following functions.
Write the number before each
item according to the correct
sequence of digestion process.

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___________ digests all the
nutrients. It is the organ of
complete digestion and
absorption.

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____________ Digestion
begins here. This is where
carbohydrates first
chemically digested.

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___________ This is where
the fecal material exit.

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___________ Process and
transport food. This is
where the protein first
chemically digested.

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__________ takes out the
waste. It contains symbiotic
bacteria that produces
vitamins and minerals from
the undigested residue.

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ANSWERS

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___________ digests all the
nutrients. It is the organ of
complete digestion and
absorption.

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____________ Digestion
begins here. This is where
carbohydrates first
chemically digested.

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___________ This is where
the fecal material exit.

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___________ Process and
transport food. This is
where the protein first
chemically digested.

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__________ takes out the
waste. It contains symbiotic
bacteria that produces
vitamins and minerals from
the undigested residue.

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Thanks
Submitted by
Aditya
Gurgaon

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