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The Digestive Track
Part I of Essay
The BIG MAC is placed in the mouth. The bread is mainly starch, the special
sauce is mainly fat, lettuce, pickles, and onions are niacin. The beef patties
are protein,and cheeseis a form of calcium, fat, and protein.
The piece of the BIG MAC is placed in the mouth and chew .... Part II of Essay
.... The lever
contributes to this digestive process by secreting into the small intestine, a
liquid called bile. The pancreas secretes pancreatic juice which further aids
in dissolving food.
The small intestine undergoes continual muscular contractions called
peristalses. This action pushes food into the large intestine. This surface of
the small intestine has a large number of threadlike projections called villi.
The digested, liquified food is absorbed through the villi, and passes into
capillaries that are inside the villi. Now the ....
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Words: 333 - Pages: 2
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