Understanding Blood Vessels

What is the main function of blood vessels?

• Store nutrients

• Transport blood throughout the body

• Produce blood cells

• Break down food

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

• Veins

• Capillaries

• Arteries

• Venules

Which blood vessels are responsible for exchanging nutrients and gases with tissues?

• Arteries

• Veins

• Capillaries

• Arterioles

True or False: Veins carry oxygen-rich blood.

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What is the largest artery in the human body?

• Pulmonary artery

• Carotid artery

• Aorta

• Femoral artery

Which blood vessels have valves to prevent backflow of blood?

• Arteries

• Capillaries

• Veins

• Arterioles

What is the primary function of capillaries?

• Carry blood away from the heart

• Connect arteries and veins

• Store blood

• Pump blood

True or False: Arteries have thicker walls than veins.

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What is the role of the pulmonary artery?

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Which blood vessels return blood to the heart?

• Capillaries

• Arteries

• Veins

• Arterioles