Figure 20-2 Cardiac Cycle

question 61

Multiple Choice

Figure 20-2 Cardiac Cycle

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

• A) AV valve opens.
• B) AV valve closes.
• C) Ventricular filling begins.
• D) Semilunar valve closes.
• E) Semilunar valve opens.

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