Circulatory Video Q/A

How long would all the arteries and veins measure if laid end to end?

• 80,000 kilometers

• 50,000 kilometers

• 96,000 kilometers

• 120,000 kilometers

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

• To pump blood throughout the body

• To produce blood cells

• To filter blood

• To store nutrients

Through which major artery does blood leave the heart?

• Aorta

• Pulmonary artery

• Jugular vein

• Carotid artery

What is the role of capillaries in the circulatory system?

• They facilitate the exchange of oxygen and nutrients with cells

• They pump blood back to the heart

• They store blood

• They cool down the blood

Where does the blood get oxygenated before returning to the heart?

• In the liver

• In the lungs

• In the spleen

• In the kidneys