title: [Pacemaker region of the heart].
mesh_terms: D000200:Action Potentials; D000818:Animals; D002118:Calcium / Q000494:pharmacology; D004558:Electric Stimulation; D004566:Electrodes; D004594:Electrophysiology; D006339:Heart Rate; D008564:Membrane Potentials; D008839:Microelectrodes; D011188:Potassium / Q000494:pharmacology; D012849:Sinoatrial Node / Q000502:physiology*; D012964:Sodium / Q000494:pharmacology; D013696:Temperature
chemical_list: D012964:Sodium; D011188:Potassium; D002118:Calcium