Mathematical modeling demonstrates that non-uniform elasticity along the arterial tree contributes to the efficient operation of the cardiovascular system.
Calculations have been made of the propagation of oscillations in a simple non-uniform transmission-line, to illustrate the amplification of travelling waves, and to show the manner in which non-uniformity of the line influences the input impedance. The model was chosen to examine the influence of the known variation of elasticity along the arterial tree, upon the impedance which is presented to pulsatile blood-flow from the heart into the aorta, and upon the `amplification' of arterial pressure-pulses in the periphery. It is concluded that the possession of non-uniform elasticity contributes to the efficient operation of the cardiovascular system.
Michael G. Taylor (Fri,) studied this question.