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homeostasis

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Term
Definition
homeostasis   maintenance of a stable internal environment  
negative feedback   when the body signals a system to to stop something in order to maintain homeostasis  
positive feedback   when the body signals a system to continue doing something.  
example of negative feedback   When a person exercises very hard, the muscles do not get enough oxygen lactate builds up in the muscle which causes muscle fatigue and pain, once the exercise stops, the lactates are carried away from the muscles, and the pain stops.  
example of positive feedback   If an infection is present, the body may respond with a fever. If the infection continues to the spread and develop, the body may continue to raise it's temperature in an attempt to rid itself of the infection.  
thermogenesis   internal heat production  
shivering   example of internal heat production  
evaporation   heat loss from converting water from liquid to vapor  
conduction   heat loss through direct contact between objects  
convection   heat loss where one object is in motion  
radiation   heat loss due to temperature gradient  


   






 
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Created by: cbiondillo