As the title mentions, don’t tourniquets just stop the blood completely, or do they direct the blood to where they should go?
Also, how does it work in the case of amputations?
These may be stupid questions…
In: Biology
It isn’t *that* kind of circuit.
Blood goes out into the body through arteries and returns through veins. The blood vessels split up many times becoming smaller and smaller as they extend into the body, splitting blood flow between all parts of the body. Then the blood is collected and returned through veins which gradually merge together into larger vessels.
Blocking blood flow into your arm for example is going to stop blood flowing in and out of that arm, but it is just one of the split paths the blood can flow. It will just continue to flow down and return by the other paths in the rest of the body. It isn’t like one big highway loop.
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