what happens to a severed finger on a cellular level immediately following amputation?
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Immediately? The cells continue to do their thing, working towards the common good even though there doesn’t seem to be any commands coming down the neuron message tube. There’s also a very concerning loss of blood pressure.
The hair continues to grow. The skin keeps splitting and making new skin. The immune system in the area starts to fight off the influx of germs. Some messengers runs off to a lymph node to call for reinforcements, but they never make it. The fingertips continue sending the nerve messages up the line how cold the floor is. But no one is listening.
Cell death happens within hours when they run out of oxygen since there’s no more blood supplying them. They can’t burn their ATP energy to do their work (like sustaining themselves) and they effectively suffocate.
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