. The topographical anatomy of the limbs of the horse. Horses; Physiology. 72 TOPOGEAPHIGAL ANATOMY OF dissector should satisfy himself as to the range and nature of the possible movements. Obviously the arrangement itself of the bones points to the hinge-like character of the combined articulations. The most free movement is clearly one of flexion and extension; but this, it must be remembered, is the result of the sum of the movements between the radius and the carpus, and between the two rows of carpal bones—the former contributing more than the latter. Between the distal row of bones and t
. The topographical anatomy of the limbs of the horse. Horses; Physiology. 72 TOPOGEAPHIGAL ANATOMY OF dissector should satisfy himself as to the range and nature of the possible movements. Obviously the arrangement itself of the bones points to the hinge-like character of the combined articulations. The most free movement is clearly one of flexion and extension; but this, it must be remembered, is the result of the sum of the movements between the radius and the carpus, and between the two rows of carpal bones—the former contributing more than the latter. Between the distal row of bones and the bases of the metacarpals there is no Radius Accessory carpal bone (pisiform). rourtli metacarpal - Lig. collaterale laterale. Intermediate carpal bone (lunar). Ulnar carpal bone (cunei- form). Fourth carpal bone (unciform). Third metacarpal bone. 50,—Lateral Aspect of the Carpal Articulations. 1. = Ligament from accessory carpal bone to radius. 2. = Dorsal ligament from accessory carpal to ulnar carpal bone. 3. = Ligament from accessory carpal to lourth carpal and fourth metacarpal bones. 4. = Dorsal ligament connecting ulnar and intermediate carpal bones. 5. = Dorsal ligaments connecting third and fourth carpal bones. 6. = Dorsal ligaments connecting third and fourth carpal bones to third and fourth metacarpals. movement of a nature that would add to flexion and extension, liga- ments being so disposed as to prevent more than a limited amount of gliding of one bone over another. The movement of flexion is accompanied by the gliding of one carpal bone over its neighbour; especially is this the case between the different members of the proximal row. Under normal conditions it is doubtful if there is any movement of abduction and adduction in the carpal articulations themselves; though, owing to the form of the bony surfaces, the distal part of the limb is slightly abducted during flexion., ... ^^ Digitized by Microsoft®. Please note that these images are extracted
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