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human body system
Term | Definition |
---|---|
Tissue | a group of similar cells that performs a specific funtion |
Organ | a body structure that is composed of different kinds of tissue that work together |
Organ system | a group of organs that work together to perform a major fuction |
Gland | an organ that produces and release either through ducts or into the bloodstream |
hormone | 1.the chemical produced by an endocrine gland 2. A chemical that effects growth and development |
stress | the reaction of a personĀ“s 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 essentail 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 |