One last question before I go in. UWorld Q. Id 1517

[quepatho]

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There's a pressure volume loop for the cardiac cycle and, unless I'm reading it wrong, it says the AV valve closes at a higher pressure than it opens at. Does it??

I'm confused. :/

I have one last day before the exam and if someone could help me with this one last problem, I would be eternally grateful 😀.

 

[RapplixGmed]

There's a pressure volume loop for the cardiac cycle and, unless I'm reading it wrong, it says the AV valve closes at a higher pressure than it opens at. Does it??

I'm confused. :/

I have one last day before the exam and if someone could help me with this one last problem, I would be eternally grateful 😀.

Yup. Just look at the cardiac cycle diagram:
http://upload.wikimedia.org/wikipedia/commons/5/5b/Cardiac_Cycle_Left_Ventricle.PNG

The aortic valve opens at systemic diastolic pressure and it closes at slightly less than systemic systolic pressure.

 

[quepatho]

Yup. Just look at the cardiac cycle diagram:
http://upload.wikimedia.org/wikipedia/commons/5/5b/Cardiac_Cycle_Left_Ventricle.PNG

The aortic valve opens at systemic diastolic pressure and it closes at slightly less than systemic systolic pressure.

Thank you, I see what you mean. 🙂 Cardio was never my strong suit...😀