PSYC 280 Study Guide - Ventromedial Nucleus Of The Hypothalamus, Preoptic Area, Diabetes Mellitus Type 2
3 Dec 2013
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Homeostasis maintains a consistent internal environment: the example of. Thermoregulation: homeostatic systems share several key features. Study questions: intake systems: a homeostatic system involves regulation of the temperature, water balance, or food, a modern classification of animals reflects the source from which they derive warmth. Endotherms actively generate warmth internally in order to regulate their body temperature, whereas ectotherms gain their heat from the environment. Animals in both classes actively regulate their temperature, but endotherms do so through metabolism, whereas ectotherms do so behaviorally (such as by sitting on a hot rock): one advantage of endothermy is greater independence from environmental conditions. By producing a constant internal temperature, endothermy allows an animal to forage in a wider variety of environments. Also, in order to produce the chemical reactions necessary to produce heat, endothermy has allowed animals a greater capacity for oxygen utilization.
