Calcium-dependent secretion of catecholamines from the perfused bovine adrenal medulla by sodium deprivation.

Abstract
Bovine adrenal gland was retrogradely perfused with a Ca-deficient medium, and secretion of catecholamines was induced by sucrose medium substituted for NaCl. Catecholamine secretion due to sucrose medium was divided into 2 portions, one independent of, and the other dependent on extracellular Ca.