The normal pacemaker of the heart is the _____, which is found in the _____.
A) SA node; left atrium
B) AV node; right atrium
C) SA node; right atrium
D) AV node; left atrium
Correct Answer:
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Q1: Approximately one third of the heart lies
Q2: The base, or lower portion, of the
Q3: The heart is divided into _ chambers
Q4: An internal wall of connective tissue called
Q5: The _ is a double-walled sac that
Q7: Which of the following circles around the
Q8: The right atrium receives venous blood from
Q9: Movement of blood from the left ventricle
Q10: The _ refractory period corresponds with the
Q11: What are the two phases of the
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