The "pacing" structure of the heart's electrical activity is the
A) atrioventricular (AV) node.
B) bundle of His.
C) Purkinje fibers.
D) coronary sinus.
E) sinoatrial (SA) node.
Correct Answer:
Verified
Q4: In what group are the right and
Q5: Purkinje fibers are located in the
A)sinoatrial node.
B)atrioventricular
Q6: Which two heart structures are most anterior
Q7: Thin-walled reservoirs of the heart are the
A)atria.
B)pericardia.
C)sinuses.
D)ventricles.
E)septa.
Q8: Closure of the ductus arteriosus usually occurs
A)just
Q10: The condition in which a patient's heart
Q11: The spread of the impulse through the
Q12: Which cardiac structure is responsible for the
Q13: The apex of a 2-month-old baby's heart
Q14: Contraction of the ventricles causes
A)closure of the
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