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Mouth, Stomach, Nutrient vocab
science vocab for homework grade
23
Science
7th Grade
03/19/2008

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Term
CARBOHYDRATE
Definition
sugars and starches (glucose) they provide you with energy, chemical digestion starts in the mouth with amylace breaking up the carbohydrates
Term
CHYME
Definition
a thick creamy liquid made up of partly digested food, found in the stomach; barf
Term
MUCUS
Definition
found on the inside walls of the stomach, thick for protection against gastric acid and hydrochloric acid for preventing Ulcers
Term
GASTRIC JUICES
Definition
hydrochloric acid and pepsin mixed together creating an enzyme called gastric juice, it chemically breaks down protien
Term
FATS
Definition
too much creates health problems, but it carries energy, and provides protective layers of padding around the heart and other important organs
Term
PROTIEN
Definition
Found in all the cells of your body, it builds tissue and repairs your body, digestion starts with protien
Term
VOMITING
Definition
when the normal digestive process reverses, opens the sphincter between the esophagus and stomach, then comesback up, and out
Term
3 LAYERS OF MUSCLE
Definition
One layer circles the stomach, and another runs from one end to another, this helps move food around and break it down
Term
HEARTBURN
Definition
when gastric juices get backed up, and blockes the lower esophagus and causes a burning sensation
Term
ULCER
Definition
when gastric juice finds a hole not covered by mucus it fills the hole with hydrollic acid, burning a hole, and causing an ulcer
Term
EPIGLOTTIS
Definition
closes your trachea when you swallow, closes your wind pipe
Term
NUTRIENTS
Definition
things you need to live; there are 6, vitamins, minerals, water, fats, carbs, and protiens, they are all needed for life functions
Term
MUSCULAR CONTRACTIONS
Definition
perestalsis, squeezing stuff down through the digestive track
Term
ENZYMES
Definition
chemicals that make things happen, a special protien made by the body
Term
MECHANICAL DIGESTION
Definition
where the mouth tears, grinds, and mixes the food (teeth tounge saliva)
Term
AMYLASE
Definition
an enzyme; found in human saliva, used to break starch down into sugar
Term
SALIVA
Definition
spit; produced by 3 pairs of glands in the sides and back of throat, makes food moister and easier to handle in swallowing
Term
SUGAR
Definition
glucose; a simple carb
Term
CELLS
Definition
the living parts of your body, the smallest basic unt of life, needs o2 and glucose for cellular respiration
Term
ESOPHAGEAL SPHINCTER
Definition
a ring of muscle that helps keep swallowed food in the stomach
Term
VITAMINS
Definition
chemicals made by living organisms
Term
MINERALS
Definition
chamicals that occur naturally in the environment
Term
WATER
Definition
a nutrient because your body is 3/4 water, and needs water to function
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