Circulatory System Quiz

What is the primary function of the heart in the circulatory system?

• To filter toxins from the blood

• To produce red blood cells

• To pump blood throughout the body

• To absorb nutrients from digested food

What is the role of the left ventricle in the heart?

• It pumps oxygenated blood to the lungs.

• It receives deoxygenated blood from the body.

• It pumps oxygenated blood to the rest of the body.

• It receives oxygenated blood from the lungs.

How does the heart rate increase in response to physical activity?

• By decreasing the volume of blood pumped

• Through signals from the brain to pump more blood

• By increasing the amount of oxygen in the blood

• Through a decrease in blood pressure

Which component of the blood is primarily responsible for transporting oxygen to body tissues?

• White blood cells

• Platelets

• Plasma

• Red blood cells

What is the significance of the pulmonary circulation in the circulatory system?

• It transports nutrients to the digestive system.

• It carries oxygenated blood from the heart to the body.

• It carries deoxygenated blood from the heart to the lungs and back.

• It removes waste products from the body.