The period of relaxation in which the heart fills with blood is known as _______.
A) systole
B) diastole
C) cardiac contraction
D) coronary occlusion
Correct Answer:
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Q30: The right and left sides of the
Q31: According to Starling's law of the heart,
Q32: The left ventricle pumps oxygen-rich blood into
Q33: The events that occur during one complete
Q34: _ increases heart rate.
A) Relaxation
B) Norepinephrine
C) Acetylcholine
D)
Q36: The second heart sound _.
A) marks the
Q37: _ carry blood to the lungs, where
Q38: _ occurs when heart tissue is deprived
Q39: Each heartbeat is initiated by the _,
Q40: Cardiac centers _.
A) control autonomic nerves that
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