Circulatory system-Video Quiz

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

• To digest food

• To store oxygen

• To produce energy

• To pump blood

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Which type of blood vessel is described as thin and hair-like?

• Capillaries

• Veins

• Arteries

• Nerves

What instrument do doctors use to listen to the heartbeat?

• Thermometer

• Stethoscope

• Otoscope

• Sphygmomanometer

What does blood carry to all parts of the body?

• Water and salt

• Carbon dioxide and waste

• Hormones and enzymes

• Digested food and oxygen

What happens to the impure blood in the body?

• It is absorbed by the stomach

• It is converted into energy

• It is sent to the lungs to be purified

• It is stored in the liver