Figure 20-2 Cardiac Cycle

question 158

Multiple Choice

Figure 20-2 Cardiac Cycle

Use Figure 20-2 to answer the following questions:
-What occurs at the circle labeled "4" on the graph?

• A) ventricular ejection
• B) sympathetic stimulation
• C) isovolumetric ventricular contraction
• D) isovolumetric ventricular relaxation
• E) ventricular filling

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