Abstract
For pressure pulses to be transmitted to vital organ vascular beds, minimum loss through vascular branching junctions is necessary. Experimental measurements of pulse wave velocities and cross-sectional ar eas allowed branching reflections to be quantified. Wave reflections at normal aorto-iliac junction is minimal. Increased reflec tion occurs when the branch vessel is either narrowed or occluded. Also, geo metric factors dominate over elastic factors in determining the amount of pulse wave reflections at the aorto-iliac junction.