Homeostasis + Feedback Mechanisms

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9 Terms

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Homeostasis

The ability of the body or cell to maintain a stable internal environment

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Negative Feedback

  • Maintains Balance

  • Response stops or reduces the stimulus

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Positive Feedback

  • Amplifies change

  • Response increases the stimulus

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Body Temperature Regulation

  • if too hot: Sweat glans activate to cool the body

  • if too cold: Muscles shiver to generate heat

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Childbirth (Labor contractions)

Hormone oxytocin is released, intensifying contractions until birth

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whawt type of Feedback loop is Child Birth

Positive

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What type of Feedback loop is Body Temperature Regulation

Negative

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How does negative Feedback maintain homeostasis

Negative feedback counteracts any deviation from a set point in a system, “correcting” the change by intiating repsonses that bring the system back to its normal state

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Why is positive feedback less common than negative feedback?

It tends to amplyify changes, potentially leading to unstable and runaway reactions