system
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human
ELI5 Cauterising

So in movies or other media, a common follow-up to an amputation or grievous wound is to cauterise it. I understand it burns the end bits and prevents blood loss etc but if a person had an amputated limb, what happens to the blood flowing into the missing limb via artery? Cauterising doesn’t just stitch arteries and veins together so does the blood just sit there?
gpt
Arteries and veins don't directly link normally either. All the blood gets distributed into capillaries where it can interact with your cells and only then does it get to the vein. If some part gets cut off, the blood will just get redirected into the remaining capillaries.