Quiz on the Circulatory System

What type of blood vessel carries blood away from the heart?

• Arteries

• Capillaries

• Veins

• Venules

Which blood vessels have the thickest and most elastic walls?

• Capillaries

• Arteries

• Arterioles

• Veins

What is the innermost lining layer of arteries and veins called?

• Elastic fibres

• Smooth muscle

• Collagen

• Endothelium

What happens to blood pressure as it moves from arteries to capillaries?

• It increases significantly

• It remains constant

• It decreases

• It fluctuates wildly

What prevents the backflow of blood in veins?

• Muscle contractions

• Valves

• Capillary action

• Elastic fibres

What type of circulation involves the right side of the heart pumping deoxygenated blood to the lungs?

• Systemic circulation

• Pulmonary circulation

• Cerebral circulation

• Coronary circulation

What is the main artery that supplies blood to the body?

• Pulmonary artery

• Aorta

• Femoral artery

• Coronary artery

What type of muscle is found in the walls of arteries?

• Striated muscle

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

How do veins assist in the return flow of blood to the heart?

• By using high pressure

• Through valves and muscle contractions

• By expanding and contracting

• By creating a vacuum

What is the primary function of capillaries?

• Transport blood at high pressure

• Store blood

• Regulate blood flow

• Link arteries and veins