Multiple Choice
What occurs during systole?
A) Oxygenated blood is pumped to the lungs.
B) The heart muscle tissues contract.
C) The atrioventricular valves suddenly open.
D) Oxygen-poor blood from all body regions except the lungs flows into the right atrium.
E) All of these occur.
Correct Answer:
Verified
Correct Answer:
Verified
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