Electrical coupling between tunicate heart cells.
D000200:Action Potentials; D000818:Animals; D002816:Chordata, Nonvertebrate / Q000502:physiology*; D004553:Electric Conductivity; D004566:Electrodes; D006321:Heart / Q000033:anatomy & histology / Q000502:physiology*; D008858:Microscopy, Phase-Contrast; D009206:Myocardium / Q000166:cytology