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Questions and Answers
What is the most commonly occluded coronary artery?
What is the most commonly occluded coronary artery?
- Posterior descending artery
- Right coronary artery
- Left anterior descending artery (correct)
- Left circumflex artery
Which feature of heart pathologies is NOT typically discussed in class?
Which feature of heart pathologies is NOT typically discussed in class?
- Sinus bradycardia (correct)
- Supraventricular tachycardia
- Ventricular tachycardia
- Atrial fibrillation
What is the sequence of action potential conduction in the heart?
What is the sequence of action potential conduction in the heart?
- Bundle of His - Purkinje fibers - SA node - AV node
- SA node - AV node - Bundle of His - Purkinje fibers (correct)
- AV node - SA node - Bundle of His - Purkinje fibers
- SA node - Bundle of His - AV node - Purkinje fibers
Which mechanical phases of the cardiac cycle correlate to the production of the first and second heart sounds?
Which mechanical phases of the cardiac cycle correlate to the production of the first and second heart sounds?
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What differentiates pacemaker action potentials from cardiac contractile cell action potentials?
What differentiates pacemaker action potentials from cardiac contractile cell action potentials?
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Which artery supplies blood to the right ventricle and part of the interventricular septum?
Which artery supplies blood to the right ventricle and part of the interventricular septum?
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What is the primary waveform on an electrocardiogram that corresponds to ventricular repolarization?
What is the primary waveform on an electrocardiogram that corresponds to ventricular repolarization?
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Which microscopic feature distinguishes cardiac muscle from skeletal muscle?
Which microscopic feature distinguishes cardiac muscle from skeletal muscle?
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