What is the popular old name for a dog's thumb; the obsolete inner toe on some dogs's legs; also a false hoof of deer?
Hoof and the stratum medium is what makes up the bulk of the hoof wall. Inside the hoof wall is a laminar junction, a soft tissue structure that allows the hoof to withstand the demands of force transmission it undergoes. This tissue structure binds the inner surface of the hoof wall, the dermis parietis and the outer surface of the third phalanx. Most even-toed ungulates (such as sheep, goats, deer, cattle, bison and pigs) have two main hooves on each foot, together called a cloven hoof. Most of these cloven-hooved animals also have two smaller hooves called "dewclaws" a little further
Cloven hoof possess true "hooves" – it walks on soft toes which have little more than a nail merely giving an appearance of a "hoof". Similarly, the pig, although it has cloven true hooves, does not ruminate. Other animals such as dogs or cats exhibit neither characteristic, and are thus also forbidden for Jewish consumption. Cloven hoof A cloven hoof, cleft hoof, divided hoof or split hoof is a hoof split into two toes. This is found on members of the mammalian order "Artiodactyla". Examples of mammals that possess this type of hoof are cattle, deer, antelopes, gazelles, goats, and sheep. In