. The anatomy of the domestic animals . Veterinary anatomy. McIV McIII McII Fig. 76.—Left ^Ietacarpal Bones of Horse; Volar View. 1, Nutrient foramen of large (third) metacarpal bone; 2, 3, 4, proximal extremities; 5, surface for attachment of sus- pensory'' ligament; 6, sagittal ridge of distal end of large meta- carpal bone; 7, 7', distal ends of small (second and fourth) meta- carpal bones. 77.—Phoximal Extremities of Left Metacarpal Bones of Horse; Eni> View. , Facets for second carpal bone; 3, 3', facets for third carpal bone; 4, 4', facets for fourth carpal bone; 5, metacarpal tuberos
. The anatomy of the domestic animals . Veterinary anatomy. McIV McIII McII Fig. 76.—Left ^Ietacarpal Bones of Horse; Volar View. 1, Nutrient foramen of large (third) metacarpal bone; 2, 3, 4, proximal extremities; 5, surface for attachment of sus- pensory'' ligament; 6, sagittal ridge of distal end of large meta- carpal bone; 7, 7', distal ends of small (second and fourth) meta- carpal bones. 77.—Phoximal Extremities of Left Metacarpal Bones of Horse; Eni> View. , Facets for second carpal bone; 3, 3', facets for third carpal bone; 4, 4', facets for fourth carpal bone; 5, metacarpal tuberosity. THE METACARPUS Three metacarpal bones (Ossa metacarpalia) are present in the horse. Of these, only one, the third or large metacarpal bone, is fully developed and carries a digit; the other two, the second and fourth, are much reduced, and are commonly called the small metacarpal or '^splint" bones. The Third or Large Metacarpal Bone This (Os metacarpale tertium) is a very strong long bone, which is situated ver- tically between the carpus and the first phalanx. It consists of a shaft and two ex- tremities. ^ This bone is probably equivalent to the fourth and fifth carpals of forms in which five carpal elements are present in the distal Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sisson, Septimus, 1865-1924. Philadelphia ; London : W. B. Saunders Company
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