Ingestion - Slide 1 Ingestive behaviors...

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Unformatted text preview: Slide 1 Ingestive behaviors ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 2 Physiological regulatory mechanisms • Homeostasis • Mammals maintain homeostatic balance through several regulatory mechanisms ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 3 Regulatory mechanisms • Each mechanism controlling homeostasis consists of: – System variable – Set point – Detector – Correctional mechanism – Negative feedback ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 4 Negative feedback • Negative feedback is critical ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 5 Ingestive behaviors • Eating and drinking are correctional mechanisms • Satiety signals are used by animals to terminate ingestive behaviors ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 6 Fluid balance in the body • Fluid is contained in 4 compartments: – Intracellular compartment – Extracellular compartments • Intravascular fluid • Interstitial fluid • Cerebrospinal fluid ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 7 Intracellular fluid balance • Intracellular fluid concentration is controlled by the concentration of solutes in the surrounding interstitial fluid – Isotonic – Hypertonic – Hypotonic ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 8 Intravascular fluid balance • Intravascular fluid makes up blood volume – Hypovolemia • Intracellular fluid concentrations (cell volume) and intravascular fluid levels (blood volume) are monitored by receptors that signal two different types of thirst ___________________________________...
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This note was uploaded on 10/01/2008 for the course PSYCH 202 taught by Professor Kim during the Winter '06 term at University of Washington.

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Ingestion - Slide 1 Ingestive behaviors...

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