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Digestion and Nutrition
N/A
26
Science
4th Grade
05/27/2010

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Cards

Term

Mouth

Definition
the first part of the digestive tract
Term
nutrients
Definition
proteins, fats, carbohydrates, vitamins, minerals, water
Term
food pyramid
Definition
shows different food groups and amount needed in each group
Term
mouth,esophagus,stomach, small intestine, large intestine
Definition
the order that food travels through the digestive tract
Term
chyme
Definition
a liquidlike mixture that food is broken down into by the gastic juices
Term
saliva
Definition
the clear liquid that moistens food in the mouth and begins digestion
Term
peristalsis
Definition
the squeezing movements of muscles in parts of the digestive tract
Term
liver
Definition
produces bile and filters waste from the blood
Term
small intestine
Definition
the part of the digestive tract where nutrients are absorbed into the blood as chyme
Term
pancreas
Definition
produces insulin and makes enzymes that break down food
Term
gallbladder
Definition
stores excess bile and releases it when needed
Term
proteins
Definition
used to build and repair the body
Term
gastric juices
Definition
the mixture in the stomach that helps break down food
Term
epiglottis
Definition
the flap of tissue that closes to keep food out of the trachea
Term
esophagus
Definition
connects the throat to the stomach
Term
sphincter
Definition
a ring of muscles that control an opening
Term
stomach
Definition
the stretchy storage bag in the digestive tract
Term
teeth
Definition
tear and crush food into small pieces
Term
tongue
Definition
pushes food around in the mouth and allows food to be tasted
Term
Digestion
Definition
process of breaking down food into forms the body can use
Term
taste buds
Definition
special clusters of cells on the tongue that react to chemicals
Term
mechanically and chemically
Definition
two ways that the stomach works on food
Term
villi
Definition
fingerlike structures that line the small intestine
Term
four basic tastes
Definition
sweet, sour, salt, bitter
Term
mouth
Definition
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