During ventricular systole,the AV valves _______ and the semilunar valves _____.
A) close;open
B) close;close
C) open;close
D) open;open
Correct Answer:
Verified
Q47: A heart rate above 100 beats per
Q48: An increase in heart rate would _
Q49: During atrial systole,the AV valves are _
Q50: Calculate the cardiac output in an individual
Q51: Cardiac output is equal to
A)heart rate
Q53: The cardiac output is dependent on
A)heart rate.
B)respiration
Q54: A decrease in stroke volume would _
Q55: Systole refers to
A)relaxation.
B)contraction.
C)stimulation.
Q56: The cardiac output of an average human
Q57: Diastole refers to
A)relaxation.
B)contraction.
C)stimulation.
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