Fingers of hand

Each finger presents a dorsal surface (facies dorsalis), a palmar surface (facies palmaris) that is concave in direction of the flexion, an axial surface (facies axalis) turned in direction of the axis of the foot, and an abaxial surface (facies abaxialis) turned to the opposite side (In Equidae, these surfaces are simply called medial and lateral).

The topographic subdivisions of the fingers of the Ruminants, Horses and Donkeys, because of their volume, received a particular name. In a proximodistal direction, we find

• carpus,

• cannon bone (Third metacarpal),

• fetlock (Metacarpophalangeal joint),

• long pastern bone (Proximal phalanx),

• pastern joint (Proximal interphalangeal joint),

• short pastern bone (Middle phalanx),

• coffin joint (Distal interphalangeal joint),

• coffin bone (Distal phalanx)