Heart Veins and Arteries Quiz
Questions: 16 · 10 minutes
1. A coronary artery becomes blocked. Which tissue is most directly deprived of its usual oxygen supply?
The lung tissue surrounding the pulmonary veins
The inner lining of the aorta only
The skeletal muscles of the chest wall
The heart muscle supplied by that artery
2. A catheter moves from the superior vena cava to the pulmonary trunk. Which sequence does it follow after entering the heart?
Left atrium, mitral valve, left ventricle, aortic valve
Right atrium, tricuspid valve, right ventricle, pulmonary valve
Right atrium, pulmonary valve, right ventricle, tricuspid valve
Left atrium, tricuspid valve, right ventricle, pulmonary valve
3. Which cardiac vein commonly travels alongside the anterior interventricular artery in the anterior interventricular groove?
The middle cardiac vein
The small cardiac vein
The anterior cardiac veins
The great cardiac vein
4. Why does much of the left ventricular coronary blood flow occur during relaxation rather than contraction?
The aortic valve closes off the coronary artery openings during contraction
Coronary veins reverse their flow whenever the ventricles contract
Contracting heart muscle compresses many coronary vessels
The pulmonary arteries temporarily supply the coronary circulation
5. A vessel is identified only by the fact that it carries blood toward the heart. How should it be classified?
As an artery, because arteries always carry oxygen-rich blood
As a capillary, because all returning blood passes through capillaries
As an artery, because direction does not determine vessel type
As a vein, regardless of the blood's oxygen level
6. If the coronary sinus were obstructed, which process would be affected most directly?
Blood leaving the left ventricle through the aorta
Oxygen-rich blood returning from the lungs
Venous drainage from much of the heart muscle
Blood entering the right atrium from the lower body
7. Which vessel typically divides into the anterior interventricular and circumflex arteries?
The right coronary artery
The left coronary artery
The pulmonary trunk
The coronary sinus
8. Which large venous channel lies mainly on the posterior side of the heart in the atrioventricular groove and empties into the right atrium?
The coronary sinus
The superior vena cava
The pulmonary trunk
The left atrial appendage
9. A blood clot passes from a pulmonary vein into the heart. Which chamber does it reach next?
The right atrium
The right ventricle
The left atrium
The left ventricle
10. Which vessels carry oxygen-poor blood directly from the right ventricle toward the lungs?
The pulmonary trunk and pulmonary arteries
The pulmonary veins
The superior and inferior venae cavae
The coronary arteries
11. In coronary artery bypass surgery, why is the graft connected beyond a narrowed section of a coronary artery?
To provide another route for blood to reach tissue past the narrowing
To prevent blood from entering the coronary circulation
To replace the pulmonary artery's connection to the heart
To direct venous blood from the heart into the aorta
12. Which coronary vessel runs in the anterior interventricular groove and is commonly called the LAD?
The posterior interventricular artery
The circumflex artery
The right marginal artery
The anterior interventricular artery
13. Which vessels normally return oxygen-rich blood from the lungs to the heart?
The pulmonary arteries
The pulmonary veins
The bronchial arteries
The venae cavae
14. Where do the right and left coronary arteries originate?
From the pulmonary trunk above the pulmonary valve
From the aortic arch near its major branches
From the ascending aorta just above the aortic valve
From the coronary sinus near the right atrium
15. Which artery curves through the left atrioventricular groove and commonly supplies the lateral and posterior regions of the left ventricle?
The circumflex artery
The anterior interventricular artery
The right marginal artery
The pulmonary artery
16. Blood returning from the legs through the inferior vena cava enters which chamber first?
The right ventricle
The right atrium
The left atrium
The left ventricle