33Heart CirculationMedium1 markWhat is the correct order of structures for an electrical impulse during the next cardiac cycle after diastole?Aatrioventricular node → Purkyne tissue → sinoatrial nodeBatrioventricular node → sinoatrial node → Purkyne tissueCsinoatrial node → atrioventricular node → Purkyne tissueDsinoatrial node → Purkyne tissue → atrioventricular nodeGrade answerSolutionGrading criteria