What is the condition in which the heart impulses are too slow to maintain circulation?
A) Heart block
B) Arrhythmia
C) Ectopic pacemaker.
D) Incompetent valve.
Correct Answer:
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Q33: Which of the following represents the correct
Q34: What structural component of cardiac muscle cells
Q35: The sound of a heart murmur is
Q36: What acts as a pacemaker,initiating the heartbeat?
A)Nerves
B)AV
Q37: The pulmonary vein
A)carries oxygen-rich blood from lungs
Q39: The second heart sound,"dup," is caused by
Q40: In an ECG,the T wave represents
A)depolarization of
Q41: The amount of blood pumped out of
Q42: The cardioregulatory center is located in the
A)cerebrum.
B)cerebellum.
C)medulla
Q43: Which chambers contract simultaneously?
A)Two atria
B)Right atrium and
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