Quiz on Human Heart and Blood

Which of the following chambers of the heart receives deoxygenated blood from the body?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

What is the function of the tricuspid valve?

• Connects left atrium to left ventricle

• Connects right atrium to right ventricle

• Connects left ventricle to aorta

• Connects right ventricle to pulmonary artery

Which blood type is considered the universal recipient?

• A

• B

• AB

• O

Which blood type is considered the universal donor?

• A

• B

• AB

• O

What is the main function of erythrocytes (RBCs)?

• Transport oxygen on hemoglobin

• Phagocytose foreign particles

• Produce antibodies

• Regulate blood pressure

Which valve connects the left ventricle to the aorta?

• Tricuspid valve

• Mitral valve

• Pulmonary valve

• Aortic valve

What is the primary function of capillaries?

• Carry oxygenated blood away from the heart

• Carry deoxygenated blood towards the heart

• Allow for exchange of gas, nutrients, and waste

• Transport blood to the lungs

Which part of the cardiac cycle involves the contraction of atria and ventricles?

• Diastole

• Systole

• Purkinje fibers

• AV node

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

• Initiates contraction of atria

• Connects atria to ventricles

• Relaxes the heart muscles

• Pumps blood to the lungs

Which blood vessel carries oxygenated blood away from the heart?

• Veins

• Arteries

• Capillaries

• Venules