In cases of extreme dismemberment, how does the circulatory system know to reroute blood flow?

Question

Let’s say in the case of someone losing their arm at the shoulder; How does our body rebuild?

In: Biology

Answer 1

You mean after the surgery to save you? A good suegeon will make sure he connects all nescessary bloodvessels for your body to function. Your vascular system is mostly parallel not seriell. So blood does not travel down the arm and then go somewhere else or such. The big atery that goes down in front of your spine splits up into smaller one as it goes down, giving all extremities their own supply