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HOMEOSTASIS AND FEEDBACK CONTROL pp 1041-1042.

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Presentation on theme: "HOMEOSTASIS AND FEEDBACK CONTROL pp 1041-1042."— Presentation transcript:

1 HOMEOSTASIS AND FEEDBACK CONTROL pp 1041-1042

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4 Homeostasis: maintaining stable internal environment Bringing body back to normal The sympathetic and parasympathetic divisions of the autonomic system function in opposition to each other for “flight or fight” response HOMEOSTASIS

5 Last step of the series controls the first FEEDBACK MECHANISMS

6 Negative feedback: the product (response) stops production of the initial stimulus EX. Thermoregulation (sweating and shivering) NEGATIVE FEEDBACK

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8 POSITIVE FEEDBACK The product stimulates production of the initial stimulating substance or action (i.e. contractions during labor)

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