Abstract

Applicability of a general formula, derived originally for the circumferential tension in a straight hollow cylindrical tube in equilibrium under constant internal and external pressures, proved to be extended to the equilibrium of a curved tube with arbitrary planar bendings, provided that the circumferential tension is defined as the arithmetic average of tensile forces per unit axial length acting perpendicularly to the section of tube walls cut by a plane passing through the tube axis. It was shown that the formula may be applied to any blood vessel on a plane regardless of its planar bendings, size, and pulsatile movement, in so far as its cross-sectional shape can be assumed to be annular and formed by two concentric circles.

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