[Ionic mechanisms responsible for automatism in the dominant and latent pacemakers of the rabbit heart].
Sections of the Rabbit sinoatrial node in small isolated pieces reveal the presence of two populations of cells with different action potentials, the pacemaker potentials of which are due to the intervention of two different ionic mechanisms. This organization explains the functional heterogeneity of the Rabbit sinus node.
D000200:Action Potentials; D000818:Animals; D002586:Cesium / Q000494:pharmacology; D004594:Electrophysiology; D007473:Ion Channels / Q000502:physiology*; D007700:Kinetics; D011817:Rabbits; D012849:Sinoatrial Node / Q000166:cytology / Q000502:physiology*; D013779:Tetrodotoxin / Q000494:pharmacology
D007473:Ion Channels; D002586:Cesium; D013779:Tetrodotoxin
Les mécanismes ioniques responsables de l'automatisme dans les pacemakers dominant et latents du coeur de Lapin.