8 Questions
What is the most commonly occluded coronary artery?
Left anterior descending artery
Which feature of heart pathologies is NOT typically discussed in class?
Sinus bradycardia
What is the sequence of action potential conduction in the heart?
SA node - AV node - Bundle of His - Purkinje fibers
Which mechanical phases of the cardiac cycle correlate to the production of the first and second heart sounds?
Isovolumetric contraction - Ventricular ejection - Isovolumetric relaxation
What differentiates pacemaker action potentials from cardiac contractile cell action potentials?
Frequency of action potential firing
Which artery supplies blood to the right ventricle and part of the interventricular septum?
Right coronary artery
What is the primary waveform on an electrocardiogram that corresponds to ventricular repolarization?
T wave
Which microscopic feature distinguishes cardiac muscle from skeletal muscle?
Intercalated discs
This college-level exam for A&P2 focuses on challenging students to apply learned information, understanding underlying concepts, and preparing for similar questions in allied health science programs and licensing exams. All questions are multiple choice with four choices provided.
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