hoof
Thick corneous casing covering and protecting the terminal end of the limb; it rests on the ground while the horse is walking and absorbs shocks.
toe clip 
Triangular iron clip mounted on the toe of the hoof to protect the corneous material and to hold the horseshoe in place.
horseshoe 
Curved metal band nailed under the wall of the hoof to protect it against wear, to absorb shocks and to provide better traction on the ground.
side wall 
Side part of the wall of the hoof between the toe and the quarter.
quarter 
Side part of the wall of the hoof between the heel and the side wall.
heel 
Rear portion of the wall of the hoof between the quarters and opposite the toe.
bulb 
Corneous eminence ending at the frog and joining with the heel.
coronet 
Bulge from which the wall of the hoof grows; it secretes a varnish to protect the hoof from humidity and dryness.
toe 
Front part of the wall of the hoof between the side walls and opposite the heel.