The Human Body System (Digestive)

10.  Mechanical and chemical digestion of food
 Move the food down the gastrointestinal tract
 Break down the food into smaller particles
that can be used by the cells

11. “Food to Stool”

12. MOUTH
ESOPHAGUS
STOMACH
SMALL INTESTINE
LARGE INTESTINE
RECTUM
ANUS

15.  1.5 litres of saliva
produce each day
 Food is in your
digestive system for
about 24 hours
 An adult digestive
system is about 30
feet long

16. 1. Divide the class into a three groups.
2. The group will be assigned with a topic about
Digestive parts and its functions. Use long
coupon bond.
3. Each group should have a leader, a secretary
and reporters
4. Watch and listen carefully to the video
5. 20 mins preparation.

17.  Informative 60%
 Delivery 30%
 Overall 10%

20. Group 1
1. Mouth
2. Esophagus
3. Stomach
Group 2
1. Small Intestines
2. Large Intestines
3. Rectum
4. Anus
Group 3
1. Liver
2. Pancreas
3. Gall Bladder

21. Components Functions
1. Gastrointestinal tract
1. Esophagus
2. Stomach
3. Small instestine
4. Large intestine
5. Rectum
6. Anus
2. Accessory Organs
1. Liver
2. Gall bladder
3. Pancreas
 Mechanical and
chemical digestion of
food
 Move the food down
the gastrointestinal
tract
 Break down the food
into smaller particles
that can be used by the
cells

22. Digestion is the mechanical and chemical breakdown of food into
smaller components that are more easily absorbed into a blood
stream.

23. When you eat, saliva breaks down the chemicals in the food,
turning the food into a mushy and easy-to-swallow ball called
bolus.
Gastrointestinal Tract

24. When you swallow foods or liquids, a special flap called the epiglottis
flops down over the opening of your windpipe to make sure the food
enters the esophagus and not the windpipe.
Gastrointestinal Tract

25. The stomach is like a mixer, churning and mashing together all
the small balls of food that came down the esophagus into a
semi-fluid mass of partly digested food called chyme.
Gastrointestinal Tract

26. The small intestine breaks down the food mixture even more so
your body can absorb all the vitamins, minerals, proteins,
carbohydrates, and fats.
Gastrointestinal Tract

27. Before the food mixture goes out, it passes through the part of the large
intestine called the colon, which is where the body gets its last chance to
absorb the water and some minerals into the blood.
Gastrointestinal Tract

28. The large intestine pushes the poop into the rectum, the very last stop on
the digestive tract. The solid waste stays here until you are ready
to go to the bathroom.
Gastrointestinal Tract

29. Bile is a bitter-tasting, dark green to yellowish brown fluid,
produced by the liver, that aids the process of digestion of lipids
in the small intestine.
Accessory Organs

30. In humans, the loss of the gallbladder is usually easily tolerated.
Accessory Organs

31. Because the pancreas is a storage depot for digestive enzymes, injury to
the pancreas is potentially very dangerous. A puncture of the pancreas
generally requires prompt and experienced medical intervention.
Accessory Organs

32.  How did you find
the activity?
 What is the
importance of a
digestive system?
 Generalize what
you have learned in
the activity ?

34.  Direction. Choose the best answer and write in
1/4 sheet of paper.
1. Digestion is ____________________.
a. The breakdown of food into smaller substance
that can be absorbed by the body.
b. The breakdown of food in the mouth which
contains salivary amylase
c. The breadown of starchs into simple sugar to
be easily swallowed in the esophagus.
d. The breakdown of protein into smaller pieces

35. 2. It is where the process of digestion begins?
a. Tongue
b. Teeth
c. Mouth
d. Esophagus
3. The enzyme which is responsible for protein
digestion.
a. Chyme
b. Salivary Amylase
c. Pepsin
d. HCL

36. 4. A ring-shaped muscle where food enters from
esophagus to stomach.
a. Pyloric sphincter
b. Cardiac Sphincter
c. Epiglottis
b. Pyloric Valve
5. Where does the absorbtion of water occur?
a. Stomach
b. Liver
c. Small Intestine
d. Large Intestine

37.  Each group is
assigned to a
Digestive Organs
 Choose a disease of
that digestive organs
and come up with a
health brochure
containing:
1. Info about the organ
system
2. Symptoms, causes,
and treatment of the
disease
3. Prevention

38. Specifics:
1. Long bond paper folded into four panels
2. Include pictures, diagrams, and trivia
3. To be submitted on Otobe 08, 2018(Monday)