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part of the digestive system that food passes through; a long, muscular tube consisting of several organs: the mouth, esophagus, stomach, small intestine, and large intestine
one of the main nutrients needed by the body; it is a sugar or a starch; changes to glucose in body
the grinding up and moving along of food; the physical breakdown of food into smaller pieces
supports the enamel and absorbs shocks that could damage the tooth, bone-like material found below enamel
when saliva begins to break down food into much smaller chemical parts; the digestion process in which enzymes are used to break foods into their smaller chemical building blocks
the spit in your mouth; a colorless liquid that moistens the mouth, begins the digestive process, and lubricates food during chewing and swallowing
chemicals in your body that do many things; these break down food into smaller chemical pieces
a protective secretion of the mucous membranes; a thick, slimy liquid that keeps the stomach acid from coming into contact with the stomach wall,
the specialized circular muscle that allows chyme to go from the stomach to the small intestine
part of the small intestine; only 1 foot long, where most of chemical digestion takes place
tiny, finger-like structures that protrude from the wall of the intestine; where nutrients are absorbed into the blood
the passage of excessive amounts of gas in the stomach or intestines due to the digestion of complex carbohydrates
urinary system; the organs and structures responsible for filtering and excreting wastes from the blood.
Name a few things saliva does for you.
Begins chemical digestion, protects teeth, defends against infection, and makes food taste better.
How do your stomach and esophagus keep from getting burned by your own stomach acid?
Mucus is produced in the stomach, and the gastroesophageal sphincter keeps it in the stomach.
What happens in the small intestine?
Digestion is completed, and nutrients are sent to the bloodstream.
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