Understanding Heart Anatomy and Function

Match the following functions with their corresponding parts of the cardiovascular system.

• Kidneys

• To filter blood

• Bone marrow

• To produce blood cells

• Heart

• To pump blood throughout the body

• Lungs

• To store oxygen

How many chambers are there in the human heart?

• 2

• 3

• 4

• 5

Which chamber of the heart receives oxygenated blood from the lungs?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

What is the function of the heart valves?

• To store blood

• To prevent backflow of blood

• To oxygenate blood

• To filter blood

Which valve is located between the left atrium and the left ventricle?

• Tricuspid valve

• Pulmonary valve

• Mitral valve

• Aortic valve

What is the correct order of blood flow through the heart starting from the right atrium?

• Right atrium, right ventricle, left atrium, left ventricle

• Right atrium, left atrium, right ventricle, left ventricle

• Right atrium, right ventricle, left ventricle, left atrium

• Right atrium, left ventricle, right ventricle, left atrium

Which artery supplies oxygenated blood to the heart muscle itself?

• Pulmonary artery

• Coronary artery

• Carotid artery

• Aorta

What is the role of the sinoatrial (SA) node in the heart?

• To pump blood to the lungs

• To act as the heart's natural pacemaker

• To filter blood

• To store oxygen

Which part of the heart's electrical system is responsible for delaying the impulse before it passes to the ventricles?

• Sinoatrial (SA) node

• Atrioventricular (AV) node

• Bundle of His

• Purkinje fibers

What is the main function of the left ventricle?

• To receive deoxygenated blood from the body

• To pump oxygenated blood to the body

• To receive oxygenated blood from the lungs

• To pump deoxygenated blood to the lungs