Circulatory System Quiz

What is the primary function of the circulatory system?

• To store energy

• To produce hormones

• To transport oxygen and nutrients

• To digest food

Which component of blood is responsible for transporting oxygen?

• Red blood cells

• Plasma

• White blood cells

• Platelets

What role do white blood cells play in the body?

• Transporting oxygen

• Clotting blood

• Carrying nutrients

• Defending against pathogens

How do arteries differ from veins?

• Arteries have valves, veins do not

• Arteries carry blood to the heart, veins carry it away

• Arteries have thicker walls to handle higher pressure

• Arteries are wider than veins

What is the function of capillaries in the circulatory system?

• To prevent blood from flowing backward

• To store blood

• To allow exchange of gases and nutrients

• To transport blood at high pressure