I’m always amazed by the fact that human body (or any creatures including plants) have an amazing design and system to fight off infections (immune response) and repairs for any damages.
I was particularly interested in why limbs don’t grow back if my finger that had a nasty cut recovered. If my cells know how to recover the damages on my finger why wouldnt they grow back a limb?
In: Biology
Ver very condensed version. Skin and muscle can be regrown to some extent. Bones can be repaired by patching in the cracks. Nerves can be repaired if both ends are intact.
Our bodies’ healing and regen capabilities are such that if both ends are present it can attach them together. It cannot create new muscle, bone or nerves. Our bodies simply do not have the ability
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