I have a splinter that is deeply embedded. In the past few days it has come closer to the surface, as I expected, which will eventually allow me to remove it. The question I have is: how does the body know which way to move the foreign body?
Given that this must be the work of cells, and I suspect the immune cells, how do these cells located deep in the body know to push the object towards the "surface" which they may never directly deal with rather than another random direction?
Google yields me no easy answers, leading me with 3 options:
1) proceeding from first principles (flawed and silly)
2) finding other expert advice
3) the experimental process
I wonder if I have a microscope stashed away somewhere.....
