When is the first sound of the heartbeat produced?
A) beginning of atrial systole
B) beginning of atrial diastole
C) beginning of ventricular systole
D) beginning of ventricular diastole
Correct Answer:
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Q41: The amount of blood pumped out of
Q44: When is the second sound of the
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Q48: During the ventricular systole,the AV valves _
Q49: During atrial systole,the AV valves are _
Q55: Systole refers to
A)relaxation.
B)contraction.
C)stimulation.
Q57: Diastole refers to
A)relaxation.
B)contraction.
C)stimulation.
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