ooooosssee that must of hurt always where gloves they truly work, this happened to me last year but on the other side off me hands but no where near as that.
hope you get better reall soon and get back on your bike
If you would like I can get my friends to back me up, that I was flying down the road my chain snapped and I went head over heals sliding on my hand for a good 10ft or so
did a similar thing, was bombing it down the road and the chain snapped sending me and the bike flying landed on my face, got a decent graze from that, nothing as bad as that mind though i still have some slight scarring, i was wearing gloves...they ripped
This is why I always wear gloves even if I'm just at the local dirt jumps or skatepark. I've never shredded my palms this bad but even just a little skin missing hurts for days.