Page 15
The digestive
system is
SMALL INTESTINE
Length is about 5 – 6 m long+
Surrounded by the large intestine+
The chemical digestion of food takes
place here+
Most of the nutrients are absorbed by the
small intestine+
There are 3 sub divisions called ; Duodenum, Jejinum, Ileum+
The intestinal secretion contains; Water ,
Inorganic ions , Mucous , and Enzymes+
There are many processors to increase
the surface area of the digestion+
cancer prone!
Each year, more
than 270,000
Americans develop
a cancer of the
gastrointestinal
tract, including
cancers of the
esophagus,
stomach, colon and
rectum. About half
of these cancers
result in death. In
2009,colorectal
cancer killed
almost 52,000
people in the U.S.,
more than any
other cancer
except lung cancer.
What's more, the
digestive system is
home to more
cancers, and
causes more cancer
mortalities, than
any other organ
system in the body!
LARGE INTESTINE
Length is about 1+5m+
Surrounds the small intestine+
Starting plac4e of the large intestine is the appendix+
Many glands are present in the
large intestine+
15