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This unit of study is appropriate for A.P. Biology, Laboratory #10 and in Anatomy & Physiology courses after the study of the cardiovascular system. The goal of this lesson is to demonstrate the bodyÂs ability to maintain homeostasis in two parameters: blood pressure (BP) and temperature. Upper high school students will gain skills in utilizing probeware to collect and analyze data. They will design and carry out an independent research experiment demonstrating one mechanism (thermoregulation). Students should have a rudimentary understanding of the nature of blood pressure and need to be aware of basic scientific method and archiving data in programs that allow quantitative analysis (such as Microsoft Excel). Upon completion of this activity, students will be able to: identify and discuss four parameters of human physiology that are maintained in a steady state over time (thermoregulation, blood glucoregulation, osmoregulation, blood gas regulation) and explain how the baroreceptors contribute to the bodyÂs compensating mechanisms with respect to blood pressure changes. This teaching resource was developed by a K-12 science teacher in the American Physiological SocietyÂs 2006 Frontiers in Physiology Program. For more information on this program, please visit www.frontiersinphys.org.
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