| 21. | Both chambers are in diastole, the atrioventricular valves are open, and the semilunar valves remain closed.
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| 22. | Atrioventricular dissociation and M�bitz type II block were not observed in controls but did occur in athletes ."
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| 23. | The solution is theoretically simple : Boost the atrioventricular node's blocking power and slow down the ventricles.
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| 24. | Four different septal defects exist, with perimembranous most common, outlet, atrioventricular, and muscular less commonly.
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| 25. | Used with caution in atrial fibrillation as it has the effect of increasing the atrioventricular ( AV ) conduction.
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| 26. | Atrioventricular canal defect may be divided into " partial " or " complete " forms.
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| 27. | ErbB3 null mouse embryos show severely underdeveloped atrioventricular valves, leading to death at embryonic day 13.5.
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| 28. | Next, the atrioventricular valves are identified, with the tricuspid valve slightly more apical than the mitral valve.
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| 29. | Endocardial cushion defects are associated with abnormalities of the atrioventricular valves ( the mitral valve and the tricuspid valve ).
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| 30. | GATA4 expression during cardiac development has been shown to be essential to proper atrioventricular ( AV ) formation and function.
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