| 31. | :: : Digoxin blocks the atrioventricular node and causes bradycardia & mdash; i . e . negatively chronotropic.
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| 32. | The electrical pulses then must pass through an area known as the atrioventricular node, the electrical gatekeeper to the ventricles.
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| 33. | Pacemaker cells develop in the primitive atrium and the sinus venosus to form the sinoatrial node and the atrioventricular node respectively.
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| 34. | A study also showed that there is also an increased risk of atrioventricular canal in patients who suffer from Noonan syndrome.
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| 35. | Together they discovered and described the atrioventricular node " ( AV node, Aschoff-Tawara node " ).
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| 36. | This condition, called tachycardia-bradycardia syndrome, is usually caused by sinoatrial node dysfunction or block or atrioventricular block.
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| 37. | When considering only the membranous septum, it is also known as the " atrioventricular component of the membranous septum ".
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| 38. | They extend throughout the myocardium from the apex of the heart toward the atrioventricular septum and the base of the heart.
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| 39. | One notable expression is when it is shown in the development of the outflow system and atrioventricular canal of the developing heart.
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| 40. | FAD is normally associated with Marfan syndrome, atrioventricular and semilunar valves due to elastolysis or breakdown and loss of elastic fibers.
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