ANSWERS: 3
  • The Aorta, Pulmonary Artery & Vein and the Carotid Artery are the largest and among the strongest, I believe
  • The Aorta. It handles a massive amount of blood under constant pressure. It is the largest blood vessel and due to it's direct connection to the heart it has constant stress
  • The Aorta and the Vena Cava. THe artery and vein going and coming from the heart. But most major arteries and veins need to be strong.

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