Figure 20-2 Cardiac Cycle

question 21

Multiple Choice

Figure 20-2 Cardiac Cycle

Use Figure 20-2 to answer the following questions:
-What occurs at the circle labeled "5" on the graph?

• A) peak systolic pressure
• B) isovolumetric systole
• C) isovolumetric contraction
• D) ventricular refilling
• E) increased heart rate

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