Multiple Choice
Which of these statements concerning the conduction system of the heart are true?
A) The sinoatrial (SA) node of the heart acts as the pacemaker.
B) The SA node is located on the upper wall of the left atrium.
C) The AV node conducts action potentials rapidly through it.
D) Action potentials are carried slowly through the atrioventricular bundle.
E) Both the sinoatrial (SA) node of the heart acts as the pacemaker and the SA node is located on the upper wall of the left atrium are true.
Correct Answer:

Verified
Correct Answer:
Verified
Q6: Like skeletal muscle, cardiac muscle:<br>A) relies on
Q7: On an ECG, a long P-R interval
Q9: Which of the following is true of
Q10: Which of these is NOT a characteristic
Q12: Which of the following occurs when the
Q13: The layer of the heart wall that
Q14: The cardiac skeleton<br>A) forms fibrous rings around
Q15: Tachycardia occurs when<br>A) the heart rate is
Q16: Which of these factors would cause a
Q61: Which of these is NOT one of