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Author Question: After reading the paragraphs below, answer the questions that follow.To evaluate cardiac function, ... (Read 41 times)

ETearle

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on: Jul 15, 2019
After reading the paragraphs below, answer the questions that follow.

To evaluate cardiac function, scientists and physicians measure both the pressure and the volume inside the heart. When both pressure and volume data are plotted on the same graph, the resulting graph is called a pressure-volume loop. To create a pressure-volume loop, a catheter (a thin tube) is inserted into the vessels of the heart, and measurements of both left ventricular pressure and left ventricular volume are taken. The data are plotted on a graph, and cardiac function can then be evaluated from the distribution of the data and the shape of the loop.

The following figure shows a typical left ventricle pressure-volume loop for a healthy young adult. The cardiac cycle proceeds counterclockwise. Each complete turn around the loop (for example, starting at point A and ending back at point A) represents one complete cardiac cycle.




At what point on the diagram does the aortic valve (the semilunar valve that separates the left ventricle and the aorta) open?
◦ point A
◦ point B
◦ point C
◦ point D
Campbell Biology: Concepts & Connections ¦ Taylor, Simon, Dickey, Hogan, Reece ¦ 9th Edition
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Marked as best answer by ETearle on Jul 15, 2019

bfulkerson77

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Reply #1 on: Jul 15, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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ETearle

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Reply 2 on: Jul 15, 2019
Excellent

essyface1

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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