What is this?
The circulatory system is like your body's amazing internal transport network, always moving blood around. It carries important things like oxygen and food to every cell and takes away waste, keeping you healthy and full of energy.
Key Parts to Explore
Heart
This powerful muscle constantly pumps blood throughout your entire body.
Arteries
These are strong tubes that carry fresh, oxygen-rich blood away from your heart.
Veins
These tubes bring blood that has delivered oxygen and picked up waste back to your heart and lungs.
Capillaries
These are tiny, hair-thin blood vessels where oxygen and food actually leave the blood to enter your cells.
Did You Know?
Did you know if you stretched out all the blood vessels in your body, they would wrap around the Earth more than twice?
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