The structure–property relations have been observed to be nonuniform throughout the vascular tree. Pressure and flow measured along various sites of the aorta therefore exhibit significant differences. Their waveforms have generally been predicted from models that assume an uniform, isotropic, and cylindrical vessel coupled with laminar flow of a Newtonian fluid. Although gross features can be demonstrated, accurate local mechanical and pulse transmission phenomena often cannot be obtained. We developed a unique model of the aorta that affords accurate prediction of the transmission of pressure and flow pulses from the root of the aorta to the abdominal–iliac junction. The model was developed from a close approximation of the physical characteristics of a normal canine aorta, incorporating nonlinear geometric and elastic properties, with the following assumptions: piecewise linear approximation of the overall structure of the vessel, thin-walled, nonbranching, longitudinally constrained, Newtonian fluid, laminar flow, and the absence of neuronal and hormonal influence. The model provides unconstrained variations in profile, elastance, and pulse wave velocity that can be used for study of the normal, aging, pathological, and surgical conditions.