Using the following answer code, indicate which pressure relationship exists during the time in question.
-when ventricular ejection is occurring
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

Using the following answer code, indicate which pressure relationship exists during the time in question.
-when ventricular ejection is occurring
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

During ventricular ejection, the left ventricle contracts and pumps blood into the aorta. This increases the pressure in the left ventricle, causing it to exceed the pressure in the aorta and open the aortic valve. Therefore, the ventricular pressure is higher than the aortic pressure. The atrial pressure is not directly involved in ventricular ejection and is therefore not higher than either the ventricular or aortic pressure.

Using the Following Answer Code, Indicate Which Pressure Relationship Exists