- Homeostasis - Process by which a constant internal enviornment is maintained dispite changes in the external enviornment. For example, sweating to maintain the bodies functional temperature range while excercising.
- Dynamic Equilibrium - Condition that remains stable within fluctuating limits.
- Negative Feedback - Process by which a mechanism is activated to restore conditions to original state.
- Positive Feedback - Process by which a small affect is amplified.
Homeostatic Control Systems
Have 3 functional components:
- A Monitor - Sensors in the organs of the body signal a coordinating center when an organ is functioning outside its normal limits.
- A Coordinating Center - Relays information to the regulator.
- A Regulator - Restores limit to normal range.
Homeostasis and Feedback
Negative
- Mechanisms that bring the body back to normal ranges are Negative Feedback Systems.
- Prevent small changes from becoming too large.
Positive
- Less common in the body.
- Allows an event to happen quickly and once the event occurs, the feedback system stops.
- A good example is the birth process where different hormones are produced.
- Something in this case is amplified to happen even more in your body.
-Brandon
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