Coronary Arteries Anatomy Quiz

What is the primary function of the coronary arteries?

• To supply oxygenated blood to the heart muscle

• To transport nutrients to the brain

• To regulate blood pressure

• To remove carbon dioxide from the lungs

Which artery supplies the sinoatrial node in most people?

• Circumflex artery

• Left anterior descending artery

• Sinoatrial node artery

• Right marginal artery

What is the significance of a right dominant heart?

• The left coronary artery supplies the posterior descending artery

• The right coronary artery supplies the posterior descending artery

• The heart has an equal supply from both coronary arteries

• The heart is larger on the right side

Which artery is also known as the 'Widow Maker'?

• Posterior descending artery

• Left anterior descending artery

• Circumflex artery

• Right coronary artery

What does the circumflex artery primarily supply?

• Sinoatrial node

• Intraventricular septum

• Left atrium and some of the left ventricle

• Right atrium and right ventricle

What is the role of the left anterior descending artery?

• Supplies the right ventricle

• Supplies the sinoatrial node

• Supplies the intraventricular septum and left ventricle

• Supplies the right atrium

Which artery wraps around to the posterior side of the heart?

• Right coronary artery

• Circumflex artery

• Left anterior descending artery

• Right marginal artery

What is the function of the diagonal branches of the left anterior descending artery?

• Supply the right atrium

• Supply the sinoatrial node

• Supply the left ventricle

• Supply the right ventricle

What can result from a blockage in the coronary arteries?

• Myocardial infarction

• Decreased blood pressure

• Improved oxygenation

• Increased heart rate

What is the significance of the bundle of His in the heart?

• It removes waste from the heart

• It regulates blood pressure

• It is part of the electrical conduction system

• It supplies blood to the left atrium