文章基本信息

标题：A plumber’s guide to the cardiovascular system
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作者：Shannon E. Washburn ; Randolph H. Stewart
期刊名称：Advances in Physiology Education
印刷版ISSN：1043-4046
电子版ISSN：1522-1229
出版年度：2020
卷号：44
期号：2
页码：163-168
DOI：10.1152/advan.00104.2019
出版社：The American Physiological Society
摘要：Blood flow through the cardiovascular system is governed by the same physical rules that govern the flow of water through domestic plumbing. Using this analogy in a teaching laboratory, a model of the cardiovascular system constructed of pumps and pipes was used to demonstrate the basic interactions of pressure, flow, and resistance in a regulated system, with student volunteers providing the operational actions and regulatory components. The model was used to validate predictions and explore solutions prompted by student discussion. This interactive teaching laboratory provides an engaging experiential exercise that demonstrates regulation of flow and pressure in an intact cardiovascular system with apposite changes in heart rate and resistance. In addition, the system provides strong clinical correlates and illustrates how that regulated system responds to challenges such as heart failure, inappropriate vasodilation, and hemorrhage. The results demonstrate that, with limited practice, the instructor can effectively guide the students to reliably reproduce physiologically appropriate results.
关键词：cardiovascular; education; physiology