Directed study
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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P wave | Atrial depolarization
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a wave | Atrial systole
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QRS complex | Ventricular depolarization
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c wave | Ventricular systole
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v wave | AV valve opens and ventricles fill
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Isovolumic contraction | Mitral and Aortic valve closed
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When does the aortic valve open | around 80mm Hg
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S1 or "lub" | AV valve closing
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S2 or "dub" | Aortic valve closing
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The Mitral valve closes when | The QRS complex has been initiated
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The aortic valve opens | When left ventricular pressure equals aortic pressure, when ventricular volume is at its max, during the c wave of atrial pressure, at the end of diastolic runoff of arterial pressure
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The aortic valve closes | At the start of S2, When ventricular myocytes all enter phase 3 of the action potential
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The first heart sound, S1, is | Vibrations from closing of mitral and tricuspid valves
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The C wave of atrial pressure is | Elevated when the mitral valve is leaky and because the left atrial filling and bulging of the mitral valve
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Peak systolic pressure occurs | Between aortic closing
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Created by:
mcasto
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