Abstract
Physiologically important elements (Fe, Ca, Mg, Cl, K, S and P) were surveyed with a wave length dispersive X-ray microanalyser (WDX) attached to SEM on cross section of freeze-dried bulk specimens of canine abdominal aorta after denudation of the endothelial cells with a balloon catheter. Fe was unexpectedly the major element at every spot examined while P, Ca and K were only moderate in amounts. Traces of Mg, Cl and S were found in the smooth muscle, erythrocytes, platelets and endothelial cells. There was little difference in the levels of the above mentioned elements between intact and regenerated endothelial cells.
