Heart Anatomy Quiz
Questions: 16 · 10 minutes
1. A blockage is found in the artery descending within the anterior interventricular sulcus. Which artery is affected?
Right marginal artery
Circumflex artery
Anterior interventricular artery
Posterior interventricular artery
2. During an external examination, a groove is seen marking the boundary between the atria and ventricles. What is this groove called?
Interatrial septum
Anterior interventricular sulcus
Posterior interventricular sulcus
Coronary sulcus
3. From which structure do the right and left coronary arteries normally originate?
Pulmonary trunk below the pulmonary valve
Aortic arch near its major branches
Ascending aorta just above the aortic valve
Descending thoracic aorta
4. A blood clot moves from the right atrium into the right ventricle. Which valve must it pass through?
Tricuspid valve
Mitral valve
Aortic valve
Pulmonary valve
5. Damage to the fibrous cords connecting atrioventricular valve cusps to papillary muscles would involve which structures?
Trabeculae carneae
Moderator band
Pectinate muscles
Chordae tendineae
6. Which sequence correctly traces oxygenated blood from its return from the lungs to the chamber that pumps it into systemic circulation?
Pulmonary arteries → left atrium → aortic valve → left ventricle
Pulmonary veins → right atrium → tricuspid valve → right ventricle
Pulmonary veins → left atrium → mitral valve → left ventricle
Venae cavae → right atrium → mitral valve → left ventricle
7. Which valve lies between the right atrium and right ventricle?
Pulmonary valve
Mitral valve
Tricuspid valve
Aortic valve
8. Which structure forms the wall separating the right and left ventricles?
Interventricular septum
Interatrial septum
Coronary sulcus
Fibrous pericardium
9. A clinician locates the pointed inferior tip of the heart during an examination. Which chamber primarily forms this apex?
Left ventricle
Right ventricle
Right atrium
Left atrium
10. A surgeon looks for the sinoatrial node at its usual anatomical location. Where should the surgeon examine?
The right atrium near the opening of the superior vena cava
The left atrial wall beside the pulmonary veins
The right ventricle near the pulmonary valve
The interventricular septum near the heart's apex
11. When viewed from inside the right atrium, the fossa ovalis is found on which structure?
Interventricular septum
Right atrioventricular valve
Opening of the coronary sinus
Interatrial septum
12. Which chamber receives blood directly from both the superior and inferior venae cavae?
Left atrium
Right atrium
Right ventricle
Left ventricle
13. Which layer of the pericardium lies directly on the external surface of the heart and is also called the epicardium?
Fibrous pericardium
Visceral layer of serous pericardium
Myocardium
Parietal layer of serous pericardium
14. Which chamber normally has the thickest myocardium because it pumps blood into the systemic circulation?
Right atrium
Left ventricle
Right ventricle
Left atrium
15. A probe follows the normal outflow path from the left ventricle into the ascending aorta. Which valve does it cross?
Tricuspid valve
Aortic valve
Mitral valve
Pulmonary valve
16. Which vessels carry oxygenated blood from the lungs directly to the heart?
Pulmonary arteries
Superior and inferior venae cavae
Coronary veins
Pulmonary veins