TETRAETHYLAMMONIUM AS AN AID IN THE STUDY OF CARDIOVASCULAR REFLEXES

Abstract
Tetraethylammonium, which blocks transmission in auto-nomic ganglia, prevents stimulation of the carotid and aortic glomi by acetylcholine, nicotine, and lobeline, but not by cyanide or hy-poxia. It does not block the afferent limb of pressoreceptor or pulmonary stretch receptor reflexes, nor does it block the apnea reflexly induced by veratridine.