Some answers: A bridle path is a path you can ride on I think.I saw one in Central Park in New York.
Trailering a horse- you should put shipping boots on it and maybe one of those shipping haltersAlso,you should always load the heaviest horse on the left side of the trailer.
The horn on a western saddle is where the rope is tied I think.
In English riding you ride with both hands on the reins and in western you only ride with one.
I think in English you back rein.Im not sure about western.