Homeostasis__Feedback_Loops_19-20.pptx - HOMEOSTASIS &...

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HOMEOSTASIS & FEEDBACKLOOPSVHS Anatomy & PhysiologyK. Yam 2019-2020
I. REFRESH THE LEVELS OFORGANIZATIONCELLSTISSUESORGANSORGANSYSTEMORGANISMEUKARYOTICANIMAL CELLMUSCLEHEARTCIRCULATORYSYSTEMHUMAN** Remember that your ability to RESPOND to your environment must work at theCELLULARlevel in order to make sure your body works as aWHOLE.
II. HOMEOSTASISWhat ishomeostasis?Maintaining an internal balance of chemical and physical properties in yourbody.In order to maintain homeostasis, we must respond toSTIMULI.These areSIGNALSfrom ourENVIRONMENT(internal and external) that will trigger ourbodies to generate aRESPONSE.The reponse should bring a process back to aset point = normal levelsExamples of processes that we maintain for our overall homeostasis include:Blood glucose levelsEnergy levels (respiration)Body temperaturepHBlood pressureWater levels
III. RESPONDING TO STIMULITO MAINTAIN HOMEOSTASISWe respond to stimuli and maintain homeostasis throughFEEDBACK LOOPS.

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Term
Spring
Professor
Cardenas
Tags
Cybernetics, Positive feedback, VHS Anatomy Physiology

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