Intermediate Coronary Circulation Quiz

Q1. Which major regions are normally supplied by the anterior interventricular artery?

• Anterior ventricular walls and anterior two-thirds of the interventricular septum
• Posterior wall of the left atrium only
• Right atrium only
• Superior vena cava and pulmonary trunk

Q2. Which branches of the anterior interventricular artery supply much of the interventricular septum?

• Bronchial branches
• Septal perforating branches
• Atrial branches
• Right marginal branches

Q3. What determines coronary arterial dominance?

• The artery with the largest external diameter
• The artery giving rise to the posterior interventricular artery
• The artery arising highest from the aorta
• The artery supplying the right atrium

Q4. In a right-dominant coronary circulation, which artery gives rise to the posterior interventricular artery?

• Pulmonary artery
• Circumflex artery
• Anterior interventricular artery
• Right coronary artery

Q5. In a left-dominant coronary circulation, the posterior interventricular artery usually arises from which vessel?

• Circumflex artery
• Pulmonary trunk
• Right marginal artery
• Ascending aorta directly

Q6. Which cardiac vein commonly accompanies the anterior interventricular artery?

• Superior vena cava
• Anterior cardiac vein
• Small cardiac vein
• Great cardiac vein

Q7. Which vein accompanies the posterior interventricular artery in the posterior interventricular sulcus?

• Anterior cardiac vein
• Pulmonary vein
• Middle cardiac vein
• Great cardiac vein

Q8. Which veins typically drain directly into the right atrium rather than first entering the coronary sinus?

• Posterior vein of the left ventricle
• Anterior cardiac veins
• Great cardiac vein
• Middle cardiac vein

Q9. Which coronary artery commonly supplies the sinoatrial node?

• Right coronary artery
• Pulmonary artery
• Brachiocephalic trunk
• Anterior interventricular artery in all individuals

Q10. Which coronary artery most commonly gives rise to the atrioventricular nodal branch?

• Pulmonary trunk
• Left marginal artery
• Right coronary artery
• Anterior interventricular artery