Why simple cut of finger of several millimeters takes several days to fully cure? why not several seconds?
Are cells that are cut (muscle cell could be 10 cm long written in wikipedia) could recover as one again or do they become two or both ends do not survive?
Is cleaning the wound of damaged tissue takes so long? (maybe medical tools can help then)
Or generation of inter-cell matter?
How long it takes for (say muscle) cell to duplicate (or it's from stem cells that fill-in the gap?)?
Maybe we can make cut very smooth so that only one/several layers of cells be needed to cure the cut? Or is it usually already so for say sharp knife?
Is curing in mainly done during sleep by the body?
Any other potential areas to improve curing speed?