Figure 18-2
-What occurs at "A" on the graph?
A)aortic semilunar valve opens
B)aortic semilunar valve closes
C)left AV valve opens
D)left AV valve closes
E)end-systolic volume

Name: Figure 18-2 -What occurs at "A" on the graph? A)aortic semilunar valve opens B)aortic semilunar valve closes C)left AV valve opens D)left AV valve closes E)end-systolic volume
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Question

Figure 18-2
-What occurs at "A" on the graph?
A)aortic semilunar valve opens 
B)aortic semilunar valve closes 
C)left AV valve opens 
D)left AV valve closes 
E)end-systolic volume

Quizplus · Accepted Answer

The aortic semilunar valve opens at point "A" on the graph, allowing blood to flow from the left ventricle into the aorta.

Figure 18-2 -What Occurs at "A" on the Graph