Exploring the Circulatory System for Kids

What are the main components of the circulatory system?

• Heart, lungs, and brain

• Heart, arteries, and veins

• Veins, arteries, and lungs

• Kidneys, heart, and capillaries

What is the primary function of the circulatory system?

• To transport gases only

• To regulate body temperature

• To carry nutrients and oxygen to cells

• To remove waste products only

How long would all the arteries and veins measure if placed in a single line?

• 60,000 kilometers

• 80,000 kilometers

• 96,000 kilometers

• 120,000 kilometers

How many pulsations does the heart make per day?

• About 200,000

• About 50,000

• About 100,000

• About 150,000

Where does the journey of blood start in the circulatory system?

• The heart

• The liver

• The brain

• The lungs

What is the role of capillaries in the circulatory system?

• To exchange nutrients and gases with cells

• To store blood

• To transport blood back to the heart

• To pump blood

What does the inferior vena cava do?

• Pumps blood out of the heart

• Supplies blood to the arms

• Carries blood from the lower body back to the heart

• Carries oxygenated blood to the heart

What is the significance of the aorta in the circulatory system?

• It is a chamber in the heart

• It is a type of capillary

• It is the primary vein entering the heart

• It is the main artery leaving the heart

What should you reduce in your diet to support the circulatory system?

• Sugars and sweets

• Fats

• Proteins

• Carbohydrates

Which activity is recommended to maintain a healthy circulatory system?

• Watching TV

• Reading

• Sleeping

• Physical exercise