Fig. 1From: Effect of phenylephrine and endothelium on vasomotion in rat aorta involves potassium uptakeEffect of PE and ACh on rhythmic contractions in rat aortic rings. Original tracings showing the time course of the response to PE (a) or ACh following 10−6 M PE (b) in intact aortic rings of rats. The graphs of maximum amplitude versus vascular tone for PE (c) and ACh (d) were calculated as describing in “Methods”Back to article page