The passage of a pulse wave via an intact segment of a dog's thoracic aorta, its denerved autograft, and thoracic aortal allograft from a dog donor, was studied using equipment for arterial pressure measurement and tensometry of longitudinal and transversal blood vessel deformations at the point of pressure measurement. The frequency characteristics of the equipment were adjusted beforehand. The experiment demonstrated the impossibility of the formation and spread of a normal solitary pulse wave and preservation of laminar blood flow without an intact aortal innervation. Optimal blood flow hydrodynamics in the aorta is possible only in the presence of the system for neuroreflectory control of each wave passing; the system must determine the solitary character of the wave and provide antifluttery stabilization for blood flow.
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