Intermediate Heart Quiz
Ready to start the quiz?
This quiz contains 10 questions. Click below to begin.
Q1. Which artery supplies blood to the heart muscle itself?
- Carotid arteries
- Coronary arteries
- Renal arteries
- Pulmonary arteries
Q2. What structure electrically connects the atria to the ventricles?
- Aortic valve
- Atrioventricular (AV) node
- Chordae tendineae
- SA node
Q3. What is the function of the chordae tendineae?
- Control heart rhythm
- Transport blood
- Initiate depolarization
- Prevent valve prolapse during contraction
Q4. Which valve prevents backflow of blood into the left ventricle?
- Aortic valve
- Mitral valve
- Tricuspid valve
- Pulmonary valve
Q5. Which heart sound corresponds to closure of the AV valves?
- S3
- S1 (first heart sound)
- S4
- S2
Q6. Where are the Purkinje fibers located?
- Atrial wall
- Subendocardial layer of ventricles
- Pericardium
- Coronary sinus
Q7. Which structure lies between the left atrium and the left ventricle?
- Pulmonary valve
- Tricuspid valve
- Aortic valve
- Mitral valve
Q8. Which phase of the cardiac cycle is associated with ventricular filling?
- Depolarization
- Diastole
- Refractory phase
- Systole
Q9. Where is the AV node located anatomically?
- Left ventricular wall
- Base of the aorta
- Apex of the heart
- Interatrial septum near coronary sinus
Q10. What is the function of the pericardial sac?
- Stores blood for circulation
- Stimulates pacemaker activity
- Reduces friction during heartbeats
- Forms heart valves