The digestive system is a series of hollow organs joined in a long tube
from the mouth to the anus. The main function of the digestive
system is to break down the food we eat into smaller parts so the
body can use them for energy and cell nourishment.
The digestive tract is also known as the
alimentary canal and consists of what is known as
an upper gastrointestinal tract and a lower GI. The
upper is composed of the mouth, pharynx,
esophagus, and the stomach while the lower is
made up of the bowels, the small and large
intestines and the anus rectum large intestine
small intestine. These are the main organs of the
Function of the organs
Mouth: The mouth is the first portion of the
alimentary canal that receives food and saliva.
pharynx: The human pharynx (plural: pharynges)
is the part of the throat situated immediately
posterior to (behind) the mouth .
Esophagus : The esophagus is the tube that
carries food, liquids and saliva from your mouth
to the stomach.
Small intestine: The small intestine finishes the
process of digestion, absorbs the nutrients,
and passes the residue on to the large intestine.
Large intestine : The large intestine (or large
bowel) is the part of the digestive system where
waste products from the food you eat are
collected and processed into feces.
Anus : The anus is an opening at the opposite
end of an animal's digestive tract from
Rectum : The rectum is the final straight portion
of the large intestine in some mammals.
Homeostasis : The ability or tendency of an
organism or cell to maintain
internal equilibrium by adjusting its
How the body system helps to maintain
All of the body's systems work together to
maintain balance in the body, ...
Etiology.—The causes that give rise to
stomatitis are generally local,
though it may rise from gastric or intestinal
and mechanical irritants being the most
common, such as sharp edges of
broken or carious teeth; very hot drinks, such
as tea and coffee.
Diagnosis.—The diagnosis is easily made.
The red, inflamed character
of the mucous membrane; the tenderness,
the burning sensation, dry
mouth, followed by hyper secretion of mucus,
are symptoms which can
not be mistaken for those of any other
Picture of digestive system
Pictures of digestive system
Sources of digestive system
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