The Human Circulatory System Quiz

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

• To filter blood

• To produce blood cells

• To pump blood throughout the body

• To store excess blood

How many organs in circulatory system?

• two

• one

• three

• four

Which blood vessels carry deoxygenated blood away from heart?

• veins

• arteries

• capillaries

• all of them

Which of these is NOT transported by the circulatory system?

• Oxygen

• Nutrients

• Waste products

• Sound waves

What is the name of the smallest blood vessels in the body?

• Arteries

• Veins

• Capillaries

• Ventricles

Which blood vessels carry oxygenated blood away from heart ?

• veins

• arteries

• arteries and veins

• capillaries only

What is the main difference between arteries and veins?

• Arteries carry blood away from the heart, veins towards it

• Arteries are blue, veins are red

• Arteries are found only in the arms, veins in the legs

• Arteries carry only oxygen, veins carry only carbon dioxide

Which of these is NOT a function of the circulatory system?

• Transporting nutrients

• Removing waste products

• Digesting food

• Delivering oxygen to cells

What type of blood vessel connects arteries and veins?

• Lymph nodes

• Capillaries

• Ventricles

• Atriums

Which blood vessels carry deoxygenated blood to heart ?

• arteries

• capillaries

• capillaries and veins

• veins