Re: Why can't horses throw-up?

My sources don't agree that "horses can't throw-up". Vomiting in horses 
(and cows) apparently is rare, but does occur occasionally when the stomach 
is very full--stretched beyond its normal capacity.

For a comprehensive page on the physiology of vomiting see:

       
http://arbl.cvmbs.colostate.edu/hbooks/pathphys/digestion/stomach/vomiting.html