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Asked by part1red on 9 Jul 2024.
Question: If my hand got chopped off, but my veins were still connected, could I wiggle my fingers?
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Stephanie Foster answered on 9 Jul 2024:
That sounds rather unfortunate! I think that unless your nerves were also still connected you wouldn’t be able to wriggle your fingers. The veins/arteries would provide the oxygen & food to the muscles in your fingers so they could wiggle but you would also need the nerves to send the message from your brain that tells your fingers to wiggle.
Comments
Kirsty R commented on :
If the only thing left connected was your veins, then definitely not. You need the tendons in your hands to move your fingers, so they would still need to be connected too.
Tina-Jaine H commented on :
It’s a great question, but no. To wiggle your fingers, the brain sends signals along your nerves to the muscles. That tells specific muscles to expand or contract, to pull or push on each joint. The muscles are connected to the bones by tendons, and some of these run from the hand into the arm. So all of these nerves, muscles and tendons need to be properly connected for you to wiggle your fingers. The veins provide the blood which contains the chemical energy for it all.