The Human Heart

What is the main function of the heart?

• To filter waste from the blood
• To produce energy
• To digest food
• To pump blood throughout the body

What part of the heart receives oxygenated blood from the lungs?

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

How many main parts are there in the human heart?

• Two
• Five
• Three
• Four

What do the valves in the heart do?

• Produce oxygen
• Store blood
• Increase heart rate
• Control the direction of blood flow

What is the average number of heartbeats per day?

• Around 115,000
• Around 75,000
• Around 150,000
• Around 90,000

Which system is the heart a part of?

• Circulatory system
• Digestive system
• Nervous system
• Respiratory system

What should you do to keep your heart healthy?

• Exercise regularly
• Watch television all day
• Skip meals
• Avoid drinking water

What happens to your heart rate when you exercise?

• It increases
• It decreases
• It stops
• It stays the same

What is the main component of blood that helps transport oxygen?

• Platelets
• White blood cells
• Plasma
• Red blood cells

What is one way to hydrate your body?

• Drink plenty of water
• Eat candy
• Skip drinks altogether
• Only drink soda