or The Interesting and the Strange
A few weeks ago, I did a couple of posts about toes--specifically, pedicures. Well, now it's time to give fingers some equal time.
I read something recently about fingers that I found very interesting. It concerned the prune-like fingers you get when you've had your hands in water for a long time. Apparently if you have nerve damage to your fingers, the skin on them won't wrinkle when it gets overly wet. This knowledge has been around at least since 1936 when a journal article was published about a case involving a young man who had the nerves to some of his fingers cut but not others. And you guessed it, the ones without nerve connections didn't wrinkle when wet, but the others did.
So how does the prune-effect happen anyway? Well, I'm not sure that I understand it all, but it is something like this. We have sweat glands in our fingers. Not only does water come out of those, it also goes in. When there is extra water absorbed, they expand. The nerves sense this and tell the small arteries in the fingers to contract which results in wrinkles.
What do you think about this world of finger news?
Stay tuned for the next in the series of strange (to me) body things, when we move on to faces.