Digestive System - Vocabulary Card Template
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Digestive System
STUDENT RESOURCE 1.4
INFORMATION SHEET
Taste Buds The tongue has many
Large Intestine (Colon) The colon
taste buds. They are located between
absorbs water from the waste that is left
the bumps you see. Taste buds sense
after food is digested. Smooth muscle
four basic fl avors—sweet, sour, salty, and
inside the colon’s wall contracts to push
bitter. You can taste many more fl avors
the wastes along.
because taste is also affected by your
Liver The liver makes bile. Bile breaks
sense of smell.
fats into small droplets so they can be
Salivary Glands Salivary glands in your
digested in the small intestine. The liver
mouth make saliva. Saliva breaks down
also breaks down harmful chemicals so
starches into sugars. It also makes food
your body can get rid of them.
slippery so it can pass easily down your
Adipose Tissue Adipose tissue contains
throat.
fat cells. Fat is a source of energy for
Stomach The inside of the stomach has
your body. It also helps keep your body
folds. The folds give more area for
warm. If you eat more food than your
breaking down food. Smooth muscles
body needs right away, the extra is
are inside the stomach wall. Smooth
stored in fat cells.
muscle contracts without your thinking
about it. The contractions crush and
grind food. The stomach lining releases
digestive juices that help break down
food.
Small Intestine The fi ngerlike structures
are called villi. Villi have tiny blood
vessels inside them. Villi absorb nutrients
into the bloodstream. Smooth muscle
in the intestine’s wall contracts to push
food along.
HUMAN BODY • SECTION 1 FROM CELLS TO SYSTEMS
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