Coronary Anatomy and Function

This tutorial covers the vascular supply to the heart, focusing on the arterial supply and venous drainage. It explains the coronary arteries, their branches, and the grooves on the heart where these arteries run. The right coronary artery gives rise to the right marginal and posterior descending arteries, while the left coronary artery branches into the anterior descending and circumflex arteries. The concept of coronary dominance is also discussed, highlighting anatomical variations in the origin of the posterior interventricular artery.

What is the primary function of the heart's vascular supply?

• To remove waste from the heart

• To supply oxygenated blood to the heart

• To provide nutrients to the heart

• To regulate heart temperature

What is the name of the groove that separates the atrium and ventricles?

• Interventricular sulcus

• Coronary sulcus

• Pulmonary sulcus

• Aortic groove

Which groove runs between the right and left ventricles?

• Aortic groove

• Interventricular sulcus

• Coronary sulcus

• Pulmonary sulcus

Which artery branches off from the right coronary artery and runs along the right margin of the heart?

• Left marginal artery

• Circumflex artery

• Anterior interventricular artery

• Right marginal artery

What is another name for the posterior interventricular artery?

• Left anterior descending artery

• Right marginal artery

• Circumflex artery

• Posterior descending artery

Which artery is hidden under the pulmonary trunk and branches from the left coronary artery?

• Circumflex artery

• Posterior interventricular artery

• Anterior interventricular artery

• Right marginal artery

What is the first branch of the left coronary artery?

• Right marginal artery

• Posterior descending artery

• Circumflex artery

• Anterior interventricular artery

What determines coronary dominance?

• The presence of the coronary sulcus

• The origin of the anterior interventricular artery

• The origin of the posterior interventricular artery

• The size of the coronary arteries

In most people, from which artery does the posterior interventricular artery arise?

• Left coronary artery

• Circumflex artery

• Right coronary artery

• Pulmonary artery

What is the term used when the posterior interventricular artery arises from the circumflex artery?

• Right dominance

• Left dominance

• Coronary variation

• Aortic dominance