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Anatomy 220 week 1
intro to anatomy and study of unit 1
| Term | Definition |
|---|---|
| Homeostasis | relative constant state maintained by the body |
| set point | a range or set of normal reading levels or level within the body |
| Feedback loop | regulation network within the body to control or self-regulate |
| integrator | control center of the feedback loop |
| effectors | organs that directly influence controlled physiological variables |
| hypothalmus | the literal thermostat of the body |
| negative feedback loop | occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output |
| positive feedback loop | process that occurs in a feedback loop which exacerbates the effects of a small disturbance |
| feed-forward | information may flow ahead to another process to trigger a change in anticipation of an event that will follow |
| circadian cycles | body's internal clock mechanisms that raise and lower set points for some variables in a daily high-low rhythm |
| levels of control | the many complex process of the body are coordinated at multiple levels |
| intracellular control | mechanisms operate at the cell level |
| intrinsic control | mechanisms operate at the tissue and organ level |
| extrinsic control | mechanisms that operate outside the controlled organ |
Created by:
naomiiscool12
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