The "lub" heart sound represents ____.
A) a heart murmur
B) closure of the atrioventricular valves
C) closure of the semilunar valves
D) hypertension
E) movement of actual heart muscle
Correct Answer:
Verified
Q23: The _ are considered to be blood
Q24: Atherosclerosis is _.
A) a clot in an
Q25: Hypertension is a complication associated with _.
A)
Q26: When the body experiences stress, the sympathetic
Q27: In the average human, the heart beats
Q29: Arrange the structures that control cardiac output
Q30: Atherosclerosis _.
A) decreases arterial lumen size
B) affects
Q31: While running, _.
A) only diastolic blood pressure
Q32: When blood returns from the pulmonary circuit,
Q33: Actual gas exchange occurs through the walls
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