What is this?
Arteries are like super-strong, elastic pipes that carry fresh, oxygen-rich blood from your heart to every single part of your body. They have thick walls to handle the high pressure of your pumping heart, making sure your muscles and organs get all the fuel they need to work and grow.
Key Parts to Explore
Lumen
The Lumen is the open, hollow space inside the artery where blood flows freely.
Inner Wall
This super smooth inside lining, called the Tunica Intima, helps blood glide through without any friction.
Middle Wall
The thick, muscular Middle Wall, or Tunica Media, helps the artery squeeze and relax to push blood forward.
Outer Wall
The strong Outer Wall, known as the Tunica Adventitia, protects the artery and connects it to other parts of your body.
Did You Know?
Did you know if you stretched out all the arteries in your body, they would be long enough to reach around the Earth at least once?
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