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Human Body Final

all body systems

Digestive system functions 1) Breaks down food into molecules the body can use to make energy 2) Molecules are absorbed into the blood and carried throughout the body 3) Wastes are eliminated from the body
digestion process by which your body breaks down food into smaller nutrient molecules
absorption process by which nutrient molecules are absorbed through the walls of the digestive system into the blood stream
mouth where mechanical (teeth) and chemical (enzymes) digestion begins
salivary gland produces saliva; fluid used to moisten food and contains enzymes (proteins that speed up chemical reactions in the body) that turn starch into sugar
epiglottis a flap of tissue that seals off your wind pipe preventing food from entering
esophagus peristalsis: wave like contractions that push down food
stomach accepts food from the esophagus; stomach muscles churn food (mechanical digestion) while the enzyme pepsin, breaks down proteins (chemical digestion
pancreas triangular organ that lives between the stomach and upper small intestine; produces enzymes that go into the small intestine to break down starches, proteins, and fat
liver produces bile which breaks down fat particles *bile is sent to gallbladder
gallbladder stores bile; bile flows from the gallbladder into the small intestine
small intestine almost all chemical digestion and absorption of nutrients takes place here
large intestine water is absorbed into the blood stream and remaining material is readied for elimination (as feces)
rectum a short tube at the end of the large intestine where waste material is compressed into solid form. this waste material is eliminated from the body through the anus, a muscular opening at the end of the rectum
Created by: Sydney3142