Bringing up to the bridle, also Kept well up to the bridle: To place the horse's head up and in position, so that when proper tension or pressure is made upon his mouth he will readily obey the reins. Some horses require stronger pressure than others, as stated under [Correspondence].
Cannon bone, also Shank: The long bone situated between the knee and the fetlock joint on the front part of each fore-leg of the horse.
Canon: That part of a bit, on each side, that rests upon the bars of a horse's mouth when the bit is correctly placed.
Cantle: The somewhat elevated ridge at the back part of the saddle-seat.
[Cheek of the Bit], also Bars of the Bit: The external straight or curved rods (levers) forming the sides of a curb-bit, and which, when the bit is in the horse's mouth, are applied along the outer sides of his mouth, the reins being attached to their lower extremities. That part of these rods situated below the bit in the month is called "the lower bar," or "cheek," and that portion above the bit, "the upper bar," or "cheek."
Chin-groove: The transverse furrow in which the curb-chain rests, on the under surface of a horse's lower jaw, at the back part of the lower lip. Also called "curb-groove."
Collected canter: A canter in good form.
[Correspondence]: The degree of rein-tension made by the hand of the rider upon her horse's mouth, which, when properly established, creates a correspondence between her hand and the animal's mouth, so that the slightest movement of the one is immediately felt by the other; in all cases this correspondence must first be had before any utility can be obtained from the "give and take" movements. Some horses require a greater degree of tension for this purpose than others, according to their training and the range of sensibility of their mouths.
Croup: The hind-quarters of the horse, from and including the loins to the commencement of the tail. This term is also applied by some to the upper part of the animal's back, where the haunches and body come in contact.
Curb-bit, also Lever-bit: A bit with a straight or curved lever or rod attached on each side, designed for the purpose of restraining the horse.