plantar surface of the hoof

Corneous lower surface of the hoof in contact with the ground.

median groove

Deep natural groove through the center of the frog.

lateral groove

Natural groove separating the frog from the bars and the sole.

sole

Strong thin corneous plate comprising the lower portion of the hoof and resting on the ground.

wall

Corneous material making up the perimeter of the hoof; it is produced by the coronet and grows from 0.3 to 1 in a month.

white line

Line of dense compact corneous material bringing together the sole and the inner edge of the wall of the hoof.

toe

Front part of the wall of the hoof between the side walls and opposite the heel.

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.

bar

Terminal part of the wall of the hoof running along the edge of the frog.

frog

Part of the hoof made of soft but strong corneous material located in the notch of the sole; it is used to absorb shocks and sense the terrain.

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.