Match the pressure relationships, labelled a. through e., with the times in question. (Options may be used more than once or not at all.)
-when the aortic valve opens
A)aortic pressure ventricular pressure atrial pressure
B)ventricular pressure aortic pressure atrial pressure
C)aortic pressure atrial pressure ventricular pressure
D)ventricular pressure atrial pressure aortic pressure
E)atrial pressure ventricular pressure aortic pressure

Question

Match the pressure relationships, labelled a. through e., with the times in question. (Options may be used more than once or not at all.)
-when the aortic valve opens
A)aortic pressure > ventricular pressure > atrial pressure
B)ventricular pressure > aortic pressure > atrial pressure
C)aortic pressure > atrial pressure > ventricular pressure
D)ventricular pressure > atrial pressure > aortic pressure
E)atrial pressure > ventricular pressure > aortic pressure

Quizplus · Accepted Answer

The aortic valve opens when the pressure in the ventricles exceeds the pressure in the aorta, allowing blood to be ejected from the left ventricle into the aorta. This is described by option B, where ventricular pressure is greater than aortic pressure, which in turn is greater than atrial pressure.

Match the Pressure Relationships, Labelled A