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Figure 4 Changes With Age in Structural and Functional Properties of the Human Proximal Aorta and Large Muscular Arteries From 20 to 80 Years

(Left from top and down) Diameter of the ascending aorta (17), surface area of the aorta (18), carotid intima-media (IM) thickness (12), and systolic and diastolic brachial cuff pressure (27). (Right from top and down) pulsatile expansion (%) of the carotid artery and radial artery (21), ascending aortic characteristic impedance Zc (Asc. Ao. Zc) (25), and amplification of the pressure pulse between ascending aorta and radial artery (solid line [19]); and femoral artery (dashed line [20]).