Hemodynamics for medical students

被引:57
作者
Badeer, HS [1 ]
机构
[1] Creighton Univ, Sch Med, Dept Biomed Sci, Omaha, NE 68178 USA
关键词
streamline flow; volume flow; velocity; viscous flow pressure; kinetic pressure; gravitational pressure and potential; vascular diameter; number of branches; turbulence;
D O I
10.1152/advances.2001.25.1.44
中图分类号
G40 [教育学];
学科分类号
040101 [教育学原理]; 120403 [教育经济与管理];
摘要
The flow of blood through the cardiovascular system depends on basic principles of liquid flow in tubes elucidated by Bernoulli and Poiseuille. The elementary equations are described involving pressures related to velocity, acceleration/deceleration, gravity, and viscous resistance to flow (Bernoulli-Poiseuille equation). The roles of vascular diameter and number of branches are emphasized. In the closed vascular system, the importance of gravity is deemphasized, and the occurrence of turbulence in large vessels is pointed out.
引用
收藏
页码:44 / 52
页数:9
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