Mutagen vs Carcinogen Mutagen and carcinogen are two terms that have a lot in common. There is a potential that a single substance could be both of them at the same time and be only one of the two, as well.
A curb bit is a type of bit used for riding horses that uses lever action. It includes the pelham bit and the Weymouth curb along with the traditional curb bit used mainly by Western riders. Kimblewicks or Kimberwickes are modified curb bits, and a curb bit is used in a double bridle along with a bradoon.
1 Bit hobble: basically, a curb strap used on the snaffle bit rings of a western bridle. 2  Provides no leverage, but because open-faced bridles have no cavesson to prevent the horse from gaping its mouth open, it prevents the bit rings from being pulled through the mouth if strong pressure is applied. Frentera, a strap running from the browband to the noseband, primarily seen on bridles of certain South American designs. 2  Fiador, a form of throatlatch, is used with a hackamore. 3  Reins: The reins of a bridle attach to the bit, below the attachment for the cheekpieces.