What corium produces the frog?

• A. Coronary corium
• B. Solar corium
• C. Frog corium
• D. Perioplic corium

Answer: (C)

Hoof horn grows from living tissues called coria, and each area of the hoof has its own corium that forms the horn in that region. The frog is produced by a dedicated tissue known as the frog corium, located beneath the frog itself. This specialized corium supplies the keratin that makes the frog horn, giving it its characteristic shape and function in shock absorption and traction. The other coria have different roles: the coronary corium builds the hoof wall at the coronet, the perioplic corium forms the thin periople at the top, and the solar surface is associated with the sole. So, the frog is formed by the frog corium.