Membrane Potential of Toad Ventricle: Changes Produced by Vagal Stimulation and Acetylcholine

See allHide authors and affiliations

Science  23 Nov 1962:
Vol. 138, Issue 3543, pp. 895-896
DOI: 10.1126/science.138.3543.895


Reduction produced by vagal stimulation and application of acetylcholine in the duration of the membrane action potential in the toad is clearly demonstrated in the ventricular fiber as well as in the atrium. Vagal innervation of the ventricle is thus demonstrated. Vagal innervation of the ventricle is considered to be less extensive than vagal innervation of the atrium.