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Body Processes
A&P Exam I
| Term | Definition |
|---|---|
| Metabolism | all chemical reactions needed to sustain life; Ex: we take in food and absorb it- we use it for energy, growth and repair; without metabolism food would not be absorbed- injuries wouldn't heal, different diseases effect metabolism |
| Catabolism | the breaking down of substances into simpler compounds; Ex: food nutrients- carbohydrates being broken down into sugar's simplest form(glucose) and this (glucose) is used for energy |
| Anabolism | the building of substances using simple compounds to repair, grow, and promote function of the body; the building up of structures; Ex: muscle growth |
| ATP's (adenosine triphosphate) | unit of energy obtained from the break-down of nutrients used by the body; produced in the body |
| Fluid balance | at least 60% or more of adult weight is fluid; body is composed of a large amount of fluid; different types of fluid in the body: exra-cellular fluid, intracellular fluid |
| Extra-cellular fluid | outside of the cell; fluid that bathes the cell; carries nutrients and transports waste products |
| Intra-cellular fluid | fluid within the cell |
| Homeostasis | balance; to stay the same; to stay in a steady state |
| Negative feedback | maintains homeostasis; we have sensors in the body that monitor internal conditions and bring them back to normal when there is a shift; Ex: works like thermostat |
Created by:
Supernurse