The junction between the skin and the horn of the hoof is called the coronary band (coronet).

• A. hoof wall
• B. coronary band (coronet)
• C. periople
• D. sole

Answer: (B)

The junction between the skin and the horn is the coronary band, also called the coronet. This narrow band sits at the proximal edge of the hoof wall and is the growth zone from which horn cells are produced. In other words, horn grows from the epidermal layer of this band, making it the true boundary between the living skin and the keratinized hoof horn. The hoof wall is the hard external keratin structure you see, the periople is a soft, protective waxy ring at the very top that helps seal and lubricate, and the sole is the underside of the hoof—none of these define the skin–horn junction.