Cardiac Conduction System Quiz
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which structure is the natural pacemaker of the heart?
AV Node
SA Node
Bundle of His
Purkinje Fibers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The conduction pathway in the heart begins at the?
Purkinje fibers
AV node
SA node
Ventricular wall
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the correct conduction sequence?
SA node → AV node → Purkinje → Bundle of His
AV node → SA node → Bundle of His → Purkinje
SA node → AV node → Bundle of His → Purkinje fibers
AV node → Purkinje fibers → SA node → Bundle of His
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The slowest conduction in the heart occurs at?
SA node
AV node
Bundle of His
Purkinje fibers
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of Purkinje fibers?
Delay impulse
Transmit impulse to atria
Transmit impulse to ventricles
Generate impulse
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the heart conduction system delays the impulse to allow atrial contraction?
SA node
AV node
Bundle of His
Purkinje fibers
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the resting membrane potential of a ventricular cardiac muscle cell?
−40 mV
−60 mV
−90 mV
+30 mV
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