Coronary Artery Anatomy Quiz

This quiz will test your knowledge on the anatomy of the coronary arteries of the heart.

The nurse must be familiar with where the coronary arteries are located and what parts of the heart they supply. There are two main coronary arteries: right and left coronary artery.

Each coronary artery arises from the ascending aorta and branches into smaller arteries to deliver oxygenated blood to the myocardium.

Don’t forget to watch the lecture on anatomy of coronary arteries and review the coronary artery notes.

Coronary Artery Anatomy Quiz

Anatomy of the Coronary Arteries Quiz

1. What are the two main branches of the left coronary artery in most people? Select all that apply:
   A. posterior descending artery
   B. left anterior descending artery
   C. right marginal branch
   D. circumflex artery
   The answers are B and D. The left anterior descending artery and circumflex artery are the TWO main branches of the left coronary artery.
2. Which artery circles around onto the posterior side of the heart and supplies the left atrium and ventricle?
   A. right marginal artery
   B. posterior descending artery
   C. circumflex artery
   D. diagonal branches
   The answer is C. The circumflex artery wraps or circles around from the left coronary artery onto the posterior side of the heart and supplies the left atrium and ventricle.
3. What structure in the heart does the right marginal artery supply?
   A. left atrium
   B. right ventricle
   C. SA node
   D. right atrium
   The answer is B. The right marginal artery supplies the right ventricle and extends down to the apex of the heart.
4. What artery supplies the interventricular septum, left ventricular, some of the right ventricle and bundle branches?
   A. left anterior descending artery
   B. posterior descending artery
   C. left marginal branches (obtuse)
   D. right marginal artery
   The answer is A. The left anterior descending artery supplies the interventricular septum, left ventricle, some of the right ventricle and bundle branches in most people.
5. What artery or branches come off the left anterior descending artery and supply the left ventricle?
   A. anterior ventricle branches
   B. left marginal branches (obtuse)
   C. atrial branches
   D. diagonal branches
   The answer is D. The diagonal branches come off the left anterior descending artery and supply the left ventricle.
6. What artery can originate from either the right or left coronary artery, is found on the posterior side of the heart, and supplies the AV node in some people along with supplying the right and left ventricle, and the interventricular septum?
   A. right marginal artery
   B. posterior descending artery
   C. circumflex artery
   D. left anterior descending artery
   The answer is B. The posterior descending artery most commonly arises from the right coronary artery. It supplies the AV node in some people along with supplying the right and left ventricle, and the interventricular septum.
7. What are the branches that come off of the circumflex artery and supply the left ventricle?
   A. right marginal branches
   B. diagonal branches
   C. right anterior ventricle branches
   D. left marginal branches (obtuse)
   The answer is D. The left marginal branches (obtuse) come off of the circumflex artery and supply the left ventricle.
8. The left anterior descending artery is part of the __ coronary artery.
   right
   left
   The answer is LEFT.
9. In most people, the posterior descending artery mostly originates from the _ coronary artery.
   right
   left
   The answer is RIGHT.
10. The right anterior ventricle branch is part of the __ coronary artery.
    right
    left
    The answer is RIGHT.

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