3. Feedback
Answer: Stimulation of a receptor triggers response that changes environmentat that receptor
4. Negative Feedback
Answer:
* Effector opposes or negates the original stimulus
* Minimizes change
* Primary mechanism of homeostatic regulation in the body
* Dynamic process: Set point varies with varying environments & activity levels
5. Negative Feedback Receptors
Answer: Temperature receptors in skin & brain are stimulated & send signals to the control
center
6. Negative Feedback Control Center
Answer: The temperature control center receivedinformation from the two sets of temperature
receptors & sends commands to theeffectors
7. Negative Feedback Effectors
Answer: Sweat glands & smooth muscle in the walls ofblood vessels supplying the skin
respond
8. Positive Feedback
Answer:
* Stimulus produces a response that exaggerates or enhances the original change (rather than
opposing it)
* Tends to produce extreme responses
* Does not restore homeostasis
9. Positive Feedback Loop
Answer:
* Escalating cycle
* Typically occurs when a potentially dangerous or stressful process must be completed
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