Coronary arteries and cardiac veins

This tutorial covers the anatomy of coronary arteries and cardiac veins, focusing on their roles in coronary circulation. It details the left and right coronary arteries, their branches, and the major cardiac veins responsible for venous drainage. The tutorial highlights the significance of these structures in heart function and potential clinical implications.

What is the primary function of the coronary arteries and veins?

• To supply oxygen to the lungs

• To nourish the heart muscle

• To remove waste from the kidneys

• To transport nutrients to the brain

From which sinus does the left coronary artery originate?

• Superior vena cava

• Left aortic sinus

• Right aortic sinus

• Pulmonary sinus

Which branch of the left coronary artery encircles the heart?

• Anterior interventricular artery

• Circumflex branch

• Right marginal branch

• Posterior interventricular artery

What is another name for the anterior interventricular artery?

• Right marginal artery

• Left anterior descending artery

• Posterior interventricular artery

• Circumflex artery

Which artery is most commonly occluded, leading to severe infarction?

• Posterior interventricular artery

• Anterior interventricular artery

• Circumflex artery

• Right coronary artery

From which sinus does the right coronary artery arise?

• Left aortic sinus

• Inferior vena cava

• Right aortic sinus

• Pulmonary sinus

Which branch of the right coronary artery supplies the sinoatrial node in most of the population?

• Sinoatrial nodal branch

• Posterior interventricular branch

• Anterior interventricular branch

• Right marginal branch

What is the primary vein responsible for venous drainage of the heart?

• Coronary sinus

• Middle cardiac vein

• Great cardiac vein

• Small cardiac vein

Which vein is known as the posterior interventricular vein?

• Small cardiac vein

• Middle cardiac vein

• Left marginal vein

• Great cardiac vein

What are the smallest cardiac veins also known as?

• Anterior veins of the right ventricle

• Coronary sinus tributaries

• Veins of the BCS

• Left marginal veins