The digestive system consists of organs that process food into usable nutrients, including the mouth, esophagus, stomach, small intestine, large intestine, and anus, along with accessory organs like the pancreas, liver, and gallbladder. Digestion starts in the mouth where food is mixed with saliva, continues in the stomach for protein digestion, and most nutrient absorption occurs in the small intestine. The large intestine processes waste, and accessory organs support the digestion of fats and regulation of various metabolic functions.

3. DIGESTIVE SYSTEM
The organs that take in food
and liquids and break them
down into substances that the
body can use for energy,
growth, and tissue repair.

4. DIGESTIVE SYSTEM
The digestive system breaks
down food into simple
nutrients such as
carbohydrates, fats, and
proteins.

6. The main organs that make up your digestive system are
the organs known as your gastrointestinal tract. They are:
your mouth, esophagus, stomach, small intestine,
large intestine and anus. Assisting your GI organs
along the way are your pancreas, gallbladder and liver.
what organs make up the digestive system?

7. Digestion begins in your
mouth. Your teeth grind the
food you eat and mix it with
saliva to form a kind of ball,
known as a bolus.
Mouth

8. During the mixing, an enzyme
called salivary amylase starts
breaking down carbohydrates.
Once the food is soft and
relatively flexible, the tongue
pushes it to the back of your
mouth and into the esophagus.
Mouth

9. Your esophagus is a flattened
muscular tube that connects your
mouth to your stomach. As food is
swallowed, your esophagus
expands. It takes food about three
seconds to pass through your
esophagus, depending on the
texture and consistency.
Esophagus

10. Your stomach is a J-
shaped muscular
pouch, which
receives food from
your esophagus and
sends it to your
small intestine.
Inside your stomach,
food is mixed with
enzymes
and acid until it
becomes a liquid,
Stomach

11. The stomach is the
main site for
protein digestion
and uses powerful
enzymes, known as
pepsins, as well
as hydrochloric
acid, to digest
foods like meats,
milk, and cheese.
Stomach

12. Each of the three
parts plays a major
role in digestion
and absorption.
Absorption is a
of the digestive
process that brings
the molecules from
the digested food
into the blood and,
ultimately, the
cells.
Stomach

13. The small
intestine is an
approximately 20-
foot-long muscular
tube, which is
divided into three
distinct parts:
the duodenum, the
jejunum, and the
ileum.
Stomach

14. The last part of the
digestive tract, the
large intestine, is a
muscular tube that is
about 6 feet long. It's
divided into the cecum,
the colon, and the
rectum. Together, these
segments complete any
nutrient absorption and
process the waste into
feces.
Large intestine

15. The small intestine
or small bowel is an
organ in the
gastrointestinal
tract where most of
the absorption of
nutrients from food
takes place.
Small intestine

16. It lies between the
stomach and large
intestine, and
receives bile and
pancreatic juice
through the
pancreatic duct to
aid in digestion.
The small intestine
is about 5.5 meters
(18 feet) long and
folds many times to
Small intestine

17. The anus is the last
organ of the digestive
system. It is a 2-inch
long canal consisting
of pelvic floor muscles
and two anal sphincters
(internal and external)
which allow you to hold
in feces until you are
able to get to a
bathroom to release the
contents into the
toilet.
Anus

18. The pancreas is one of
the three "accessory"
digestion-related
organs. Your pancreas
assists your small
intestine by secreting
pancreatic juice, a
liquid filled with
enzymes and sodium
bicarbonate that is
able to stop the
digestion process of
pepsin. It also
secretes insulin, which
helps your body
Pancreas

19. Your liver has many
functions. First, it
produces bile, which the
small intestine uses to
help digest the fats in
food.
It also metabolizes
proteins, carbohydrates,
and fats; helps regulate
blood sugar levels;
stores glycogen for
quick energy; makes
fibrinogen, which clots
blood; makes vitamin A;
Liver

20. Tucked under the
liver, your
gallbladder is a
storage container for
bile, a yellow-green
fluid made up of
salts, cholesterol,
and lecithin. Your
small intestine uses
bile to digest fats.
Gallbladder

21. Most people never
think about their
gallbladder until a
problem
with gallstones or
gallbladder disease,
such as
cholecystitis,
develops. If you have
a gallbladder-related
disease, you may
experience jaundice.
Gallbladder

22. This happens when the
bile cannot leave the
gallbladder. Instead,
the bile enters the
bloodstream, which
can cause your skin,
eyes, and nails to
appear yellow.
Gallbladder