Biodynamics: CirculationThis book is a continuation ofmy Biomechanics.The first volume deals with the mechanical properties of living tissues. The present volume deals with the mechanics ofcirculation. A third volume willdeal with respiration, fluid balance, locomotion, growth, and strength. This volume is called Bio dynamics in order to distinguish it from the first volume. The same style is followed. My objective is to present the mechanical aspects ofphysiology in precise terms ofmechanics so that the subject can become as lucid as physics. The motivation of writing this series of books is, as I have said in the preface to the first volume, to bring biomechanics to students ofbioengineer ing, physiology, medicine, and mechanics. I have long felt a need for a set of books that willinform the students ofthe physiological and medical applica tions ofbiomechanics,and at the same time develop their training in mechan ics. In writing these books I have assumed that the reader already has some basic training in mechanics, to a level about equivalent to the first seven chapters of my First Course in Continuum Mechanics (Prentice Hall, 1977). The subject is then presented from the point of view of life science while mechanics is developed through a sequence of problems and examples. The main text reads like physiology, while the exercises are planned like a mechanics textbook.The instructor may filla dual role :teaching an essential branch of life science, and gradually developing the student's knowledge in mechanics. |
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acceleration alveolar sheet alveoli aorta aortic valve arterial pressure arteriole Biomechanics blood cell blood flow blood pressure boundary conditions capillary capillary blood vessels capillary sheet cardiac cm H2O coefficient constant cross section curve cylindrical deformation diastolic distribution elastic endothelium equation experimental fibers Figure Fluid Mechanics force frequency function h₁ heart hematocrit Hence increases interalveolar isovolumic laminar left atrium left ventricle length lung membrane motion nonlinear obtain p₁ papillary muscles particles pressure gradient pulmonary artery pulmonary blood pulmonary veins radius ratio red cells relationship Reproduced by permission Reynolds number sarcomere septa shear stress sheet thickness shown in Fig shows solution strain streamlines surface systole tension tissue transmural pressure tube turbulent vascular venous ventricular venule vessel diameter vessel wall vessels of order viscoelastic viscosity volume VSTR wave Young's modulus zero ди др ду дх