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