Cardiovascular System - Heart Anatomy and Function Quiz

Test your knowledge with these cardiology questions on heart structure, function, and circulation. Explore cardiovascular system anatomy!

Practice Learn Test

Which chamber of the heart receives oxygen-rich blood from the lungs?

Right atrium

Left atrium

Right ventricle

Left ventricle

What is the main function of heart valves?

To regulate blood pressure

To control the flow of blood through the heart

To produce red blood cells

To store excess blood

Which vessel carries oxygen-rich blood away from the heart to the body?

Pulmonary artery

Pulmonary vein

Aorta

Vena cava

What is the approximate number of chambers in the human heart?

Two

Three

Four

Five

Which of the following is responsible for the lub-dub sound of the heart?

Closing of the atrioventricular valves

Opening of the semilunar valves

Contraction of the atria

Relaxation of the ventricles

Which structure separates the right and left sides of the heart?

Interventricular septum

Interatrial septum

Aortic septum

Tricuspid septum

Which of the following is the pacemaker of the heart?

Sinoatrial (SA) node

Atrioventricular (AV) node

Bundle of His

Purkinje fibers

The pulmonary artery carries blood from the heart to which organ?

Brain

Lungs

Liver

Kidneys

What is the correct order of the cardiac conduction system?

SA node, AV node, Bundle of His, Purkinje fibers

AV node, SA node, Bundle of His, Purkinje fibers

SA node, Bundle of His, AV node, Purkinje fibers

AV node, Bundle of His, SA node, Purkinje fibers

#10

Which of the following is NOT a component of the pericardium?

Fibrous pericardium

Serous pericardium

Visceral pericardium

Myocardium

#11

What is the function of the chordae tendineae in the heart?

To prevent backflow of blood into the atria

To regulate heart rate

To contract and pump blood

To anchor the heart valves and prevent them from inverting

#12

What is the medical term for a heart attack?

Myocardial infarction

Cardiac arrest

Aortic dissection

Angina pectoris

#13

Which of the following is responsible for initiating the heartbeat?

Sinoatrial (SA) node

Atrioventricular (AV) node

Purkinje fibers

Bundle of His

#14

What is the function of the coronary arteries?

Carry oxygenated blood to the heart muscle

Carry deoxygenated blood away from the heart

Carry blood from the heart to the lungs

Regulate blood pressure

#15

Which of the following is NOT a risk factor for heart disease?

Smoking

High blood pressure

Low cholesterol levels

Obesity

#16

Which of the following is NOT a coronary artery?

Left anterior descending artery

Right coronary artery

Pulmonary artery

Circumflex artery

#17

What is the term for the thick layer of muscle in the heart responsible for pumping blood?

Epicardium

Pericardium

Endocardium

Myocardium

#18

What is the role of the papillary muscles in the heart?

Contraction to open the semilunar valves

Contraction to close the atrioventricular valves

Stabilize the position of the heart valves

Produce electrical impulses for heart contraction

#19

Which heart valve separates the left atrium from the left ventricle?

Tricuspid valve

Mitral valve

Aortic valve

Pulmonary valve