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Human Body systems

TermDefinition
Tissue A group of similar cells that perform a specific function
Organ a body structure that is composed of different kinds of tissues that work together
organ system a group of organs that work together to perform a major function
gland an organ that produces and releases chemicals either through ducts or into the bloodstream
hormone (1) chemical produced by an endocrine gland (2) a chemical that affects growth and development
stress the reaction of a persons body to potentially threatening challenging or disturbing events
interactions the direct effect that one thing has on another
stable resistant to sudden change
digestion the process by which your body breaks down food into small nutrient molecules
nutrients the substances in food that provide the raw materials the body's cells need to carry out all their essential processes
absorption the process by which nutrient molecules pass through the wall of the digestive system into the blood
carbohydrates a energy-rich organic compound, such as sugar or starch, that is made of the elements carbon, hydrogen and oxygen
peristalsis waves of smooth muscle contractions that move food through the esophagus toward the stomach
saliva fluid released from glands in the mouth that play an important role in mechanical and chemical digestion
enzymes proteins that speed up chemical reactions in the body
elimination act of removal of materials from the body
circulatory system an organ system that transports needed materials to cells and removes waste
contract to draw together; to reduce in size
artery a blood vessel
Created by: user-1718472
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