9.1 -9.2 - Maintaining an Internal Balance-Feedback Mechanisms.pdf

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9.1Maintaining an Internal Balance (p. 428-431)Homeostasismethod body maintains internal enviro despite external factors- dynamic equilibrium-homoiossimilar-stasisstanding stillBody’s Optimal Conditions37C0.1% blood sugar*factors can have a narrow or broad tolerance rangeblood pH 7.35Organ Systems Involved in Homeostasisorgan systems work together to:1.take in and transport nutrients & eliminate waste2.use macromolecules for structure & fxn3.sense and respond to enviro4.protect body from injury/infection5.reproduce, protect, & feed offspringextra-cellular fluid(interstitial) surrounds cells and helps w/ the above
STIMULUSRESPONSE9.2Homeostasis & Feedback Mechanisms (p. 432-435)
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Homeostasis, Cybernetics, 0 1

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