The calcaneus provides the point of the hock with the calcaneal tuberosity that extends proximally from the calcaneus. In ruminants, the calcaneal tuberosity is expanded, roughened and hollowed by a shallow groove. In horses, it is very pronounced and present a mediolateral groove on its proximal surface.
Text by Antoine Micheau, MD - Copyright IMAIOS
Veterinary Anatomy of Domestic Mammals: Textbook and Colour Atlas, Sixth Edition - Horst Erich König, Hans-Georg Liebich - Schattauer - ISBN-13: 978-3794528332
Illustrated Veterinary Anatomical Nomenclature - 3rd edittion - Gheorghe M. Constantinescu, Oskar Schaller - Enke