Beginner Left Coronary Artery Quiz

Q1. From which vessel does the left coronary artery arise?

• Ascending aorta
• Superior vena cava
• Aortic arch
• Pulmonary trunk

Q2. The left coronary artery originates from which aortic sinus?

• Posterior noncoronary sinus
• Pulmonary sinus
• Right aortic sinus
• Left aortic sinus

Q3. Which two vessels are the principal branches of the left coronary artery?

• Pulmonary and bronchial arteries
• Superior and inferior venae cavae
• Anterior interventricular and circumflex arteries
• Right marginal and posterior interventricular arteries

Q4. What is another commonly used name for the anterior interventricular artery?

• Left gastric artery
• Right marginal artery
• Posterior descending vein
• Left anterior descending artery

Q5. In which groove does the anterior interventricular artery descend?

• Anterior interventricular sulcus
• Posterior interventricular sulcus
• Costal groove
• Terminal sulcus

Q6. Which branch of the left coronary artery courses in the left part of the coronary sulcus?

• Posterior interventricular artery
• Anterior interventricular artery
• Right marginal artery
• Circumflex artery

Q7. Which cardiac chamber receives most of its arterial supply from branches of the left coronary artery?

• Superior vena cava
• Left ventricle
• Pulmonary trunk
• Right atrium only

Q8. Which major vein accompanies the anterior interventricular artery?

• Great cardiac vein
• Azygos vein
• Superior vena cava
• Middle cardiac vein

Q9. The anterior interventricular artery usually travels toward which landmark of the heart?

• Apex
• Pulmonary valve
• Superior vena cava
• Right auricle

Q10. Which statement best describes the left coronary artery?

• It is a branch of the right coronary artery
• It drains venous blood into the coronary sinus
• It arises from the left aortic sinus and supplies major portions of the left heart
• It arises from the pulmonary trunk and supplies the lungs