title: Terminology and electrophysiologic concepts in cardiac arrhythmias. III. Exit block, entrance block and protection block.
mesh_terms: D001283:Atrioventricular Node / Q000503:physiopathology; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000145:classification / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D012848:Sinoatrial Block / Q000503:physiopathology; D012849:Sinoatrial Node / Q000503:physiopathology; D013599:Systole; D013610:Tachycardia / Q000503:physiopathology; D009626:Terminology as Topic