Transcript physical(mechanical)

DIGESTIVE SYSTEM
INCLUDES…
•
•
•
•
•
•
•
Mouth
Esophagus
Stomach
Small intestine
Large intestine
Liver
Pancreas
ITS FUNCTION IS TO…
• Break down food into
a form that the body
can use (glucose)
STRUCTURE INFO:
• Mouth
• physical(mechanical)
and chemical digestion
occurs
• Esophagus
• smooth muscle, transports
food to stomach by
peristalsis
• Stomach
• physical(mechanical)
and chemical digestion
occurs
STRUCTURE INFO CONTINUED:
• Small intestine
• nutrients are absorbed
• Large intestine
• water is absorbed
• Liver
Liver and
Gall Bladder
Large Intestine
• produces bile, helps break
down medicines and fats
Small Intestine
• Pancreas
• produces insulin, which helps
lower your blood sugar
Pancreas
HOW IS STRUCTURE AND FUNCTION
RELATED?
• The intestines are
long and have
increased surface
area to obtain the
highest absorption
rate.
TAKING CARE…
• Balanced diet
• Drink lots of H2O
• Exercise
• helps things move
along,
• Do NOT smoke.
• Among the many
reasons to quit smoking,
it contributes digestive
problems such as heart
burn, ulcers, and
gallstones.
DISEASES/CONDITIONS OF THE
DIGESTIVE SYSTEM:
• Cystic fibrosis
• production of thick mucus blocks
the ducts in the pancreas. This
blockage prevents digestive juices
from entering into the intestines.
• Gastroesophageal Reflux
Disease (GERD)
• is one of the most common
diseases of the digestive system
and the characteristic feature of
this condition is heartburn.
Otherwise known as acid reflux
disease, this condition is caused by
the abnormal reflux of the
contents in the stomach (including
acids) to the esophagus.
DISEASES/CONDITIONS OF THE
DIGESTIVE SYSTEM CONTINUED:
• Ulcers are open sores or
lesions that can develop
on the walls of the
esophagus, stomach and
duodenum. This condition
can be caused by
various factors, like, stress,
lifestyle, medications, etc.
FUN FACTS:
1. Every 2 weeks, the human stomach produces a
new layer of mucous lining; otherwise the stomach
will digest itself.
2. The human liver performs 500 different functions.
3. Liver is the largest and heaviest internal organ of
the body and weighs about 1.6 kilos.
4. The Liver is the only organ of the body, which
has the capacity to regenerate itself completely
even after being removed almost completely.
5. Liver cells take several years to replace
themselves.
FUN FACTS CONTINUED:
6. A healthy liver processes 720 liters of blood per day.
7. The human stomach contains about 35 million small
digestive glands.
8. The human stomach produces about 2.5 liters of gastric
juice every day.
9. In an average person, it takes 8 seconds for food to
travel down the food pipe, 3-5 hours in small intestine and
3-4 days in the large intestine.
10. The human body takes 6 hours to digest a high fat
meal and takes 2 hours for a carbohydrate meal.