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Homeostasis (Terms (Feedback Loop (Negative Feedback (Feedback that helps…
Homeostasis
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Feedback loop
Examples
Glucose levels
Information
When we eat something that has higher glucose levels then our blood sugar would rise and if we don't eat enough our blood sugar could get lower.
This could be deadly, if we didn't have a pancreas or if a person has diabetes
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Our Pancreas has Alpha and beta cells spread out on its surface these cells detect when the glucose levels are unbalanced, either high or low. These cells also an effector because they make a response to the Glucose levels rising or lowering which is stimuli.
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How this works
When we eat something high in glucose our blood sugar would rise and become unbalanced, when this happens the beta cells absorb the glucose and converts it into glycogen and releases Insulin which
When we don't eat something for a while the glucose in our blood might get low, when this happens the Alpha cells on our pancreas detect this with a response by taking the glycogen that was stored in the liver and converts it to glucose which is put back into our system to raise or blood sugar and bring us back to homeostasis
Body temperature
Information
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How this works
When we are cold our bodies shiver, which keeps us warm. We also get goosebumps which are when our hairs stand on end to try to insulate just like a jacket would to keep our body heat closer to our core. And our blood vessels constrict and bring our blood closer to our core and farther away from our skin and extremities.
On the contrary, when we are hot our body pushes our blood to our skin and extremities to cool off, we also sweat which evaporates and cools us down faster.
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If our bodies stray away from the normal body temperature we could die without the reactions to the change in temperature or stimulus