Since hepatic arteries are free of atherosclerosis any possible wall structurechange may be attributed to age. We determined the media of hepatic and coronary arteries in view ofthis assumption. We measured its thickness and myocytic density (per 1 mm2 of cross-section) from specimenscollected from autopsied subjects, aged up to 90 years. The media gradually thickens with age, althoughvalues noted during particular decades remain statistically insignificant. The myocytic density (in 1mm2) was almost constant throughout life. The latter observation is incompatible, in comparison withdata reported by other authors (diminution was expected).

Keywords: Adolescent, Aged, 80 and over, Aging, Child, Child, Preschool, Comparative Study, Coronary Vessels, Hepatic Artery, Muscle Development, Muscle, Smooth, Vascular, Research Support, Non-U.S. Gov, Sex Characteristics