Which of the following is NOT a population of pacemaker cells in the heart?
A) Purkinje fiber system
B) atrioventricular (AV) node
C) papillary muscles
D) sinoatrial (SA) node
Correct Answer:
Verified
Q26: The long length of the cardiac action
Q27: A contractile cell with a sustained membrane
Q28: Blood in the right ventricle arrived from
Q29: Which vessel is guarded by a semilunar
Q30: As a result of the long refractory
Q32: During what phase of the action potential
Q33: What do pacemaker cell action potentials lack?
A)threshold
B)depolarization
C)repolarization
D)plateau
Q34: What characteristic differentiates cardiac muscle cells from
Q35: Which valve is situated between the left
Q36: How do cardiac cells sustain a membrane
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