1. Digestive system diseases

2. Main functions of the digestive system:
• 1. ingest food
• 2. break down food intro nutrient molecules
• 3. absorb molecules into the blood stream
• 4. rid the body of indigestible remains

3. What's
worse than
an upset
stomach?

4. Food allergies
-occur when the
immune system
reacts to
substances in
food as though
they were
harmful “foreign
invaders.”

5. Food allergies
Symptoms of food allergies often
include vomiting and diarrhea.
Symptoms of food allergies include
itching and swelling of the lips and
mouth. More serious symptoms
include trouble breathing. In some
instances, a food allergy can trigger
anaphylaxis, which is an extremely
severe reaction.
Emergency medical treatment is
critical for this condition, which left
untreated, can lead to death.

6. Ulcers
• are sores in the lining of
the stomach or
duodenum that are
usually caused by
bacterial infections.
• They may also be
caused by the acidic
environment of the
stomach. Stomach acids
may damage the lining of
the stomach. Symptoms
typically include
abdominal pain and
bleeding.

7. . The inside wall of the
stomach is protected
from the acid and
enzymes by a mucous
lining. Ulcers are caused
when there is an
imbalance between the
digestive juices
produced by the
stomach and the various
factors that protect the
lining of the stomach.

9. Heartburn
• is a painful burning sensation in the
chest caused by stomach acid
backing up into the esophagus. The
stomach acid may eventually cause
serious damage to the esophagus
unless the problem is corrected.

11. Diseases due to Nutrient deficiency

13. Diseases due to Nutrient deficiency