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Homeostasis
Week 7 assignment
| Term | Definition |
|---|---|
| homeostasis | refers to the body's tendency to maintain constant internal conditions |
| positive feedback | the result enhances the stimulus so the output is accelerated; the change that occurs is in the same direction |
| negative feedback | the output shuts off original stimulus and reduces its intensity (negates it); the change that occurs is in the opposite direction |
| inhalation | the breathing muscles expand the lungs and brings fresh air with needed O2 into the lungs |
| exhalation | the lungs get smaller and air with excess CO2 is pushed out |
| receptor | a type of sensor that monitors the environment and responds to changes |
| control center | determines the set point, analyzes the input it receives and then determines the appropriate response or course of action |
| effector | provides the means for the control center's response to the stimulus |
| Chemical, Thermal, and Neutral | Types of factors that interact to maintain homestasis |
| Stimulus | An action that evokes a response |