If we make skin and muscle cells when we heal cuts and heal/generate bones after breaking them, why wouldn’t we be able to grow a finger if one is cut off?

Question

If we make skin and muscle cells when we heal cuts and heal/generate bones after breaking them, why wouldn’t we be able to grow a finger if one is cut off?

In: 7967

Answer 1

One slight correction. We do not make new muscle cells when healing cuts and wounds. Muscle tissue can only grow by increasing the size of the existing muscle cells.