. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. 108 THE BONES. Fig. 67. The superior horder articulates with the radius ; the inferior border with the metacarpal bones. The lateral borders are nearly flat ; above and behind the external border is remarked a considerable eminence, formed by the bone which will be hereafter studied as the super- carpal bone (pisiform or trapezium). In the carpus of the Horse are seven or eight bones, which are disposed in two superposed rows. The superior row comprises four bones placed side by side, and designated by the numer
. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. 108 THE BONES. Fig. 67. The superior horder articulates with the radius ; the inferior border with the metacarpal bones. The lateral borders are nearly flat ; above and behind the external border is remarked a considerable eminence, formed by the bone which will be hereafter studied as the super- carpal bone (pisiform or trapezium). In the carpus of the Horse are seven or eight bones, which are disposed in two superposed rows. The superior row comprises four bones placed side by side, and designated by the numerical names of first, second, third, and fourtli, viewing them from without to within. The inferior row has only three, which are named in the same manner. In applying to them the names proposed by Liser, we have, in the upper row— 1. The pisiform, or supercarpal bone. 2. The cuneiform bone. 3. The lunar bone. 4. The scaphoid bone. In the inferior row— 1. The unciform bone. 2. The magnum bone. 3. The trapezoid bone. 4. The trapeziiun (not constant). The description of these bones is most simple, and may be made in a general manner for all. Thus, with the exception of the supercarpal bone, they are solid, nearly cubical in form, and exhibit on their periphery : 1. Articular surfaces. 2. Surfaces for insertion. The articular surfaces are small, flat, or slightly undulating facets, distributed on the superior, in- ferior, and lateral faces ; none are found in front or behind. The superior and inferior faces are entirely occupied by a single facet, which responds either to the radius, the metacarpals, or to the bones of the other row. The lateral facets are always multiple, and in contact with the bones of the same tier; they do not exist, of course, on the outside of the bones at the ends of each row. The surfaces for insertion are absent on the superior and inferior faces ; they separate, in the form of roughened depressions, the lateral articular facets. Before and behind, th
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