. The comparative anatomy of the domesticated animals. Veterinary anatomy. 22 THE BONES. Fig. great development of its transversal diameter, the considerable dimensions of the spinal foramen, and the thinness of its body. The intra-rachidian face of the latter is divided into two portions by a transverse ridge: one anterior, furnished with ligamentous imprints, exhibits, laterally, two deep excavations, which lodge the venous sinuses; the other, posterior, is smooth and concave from side to side, and forms an articular surface into which is received the odontoid process of the axis; this
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 22 THE BONES. Fig. great development of its transversal diameter, the considerable dimensions of the spinal foramen, and the thinness of its body. The intra-rachidian face of the latter is divided into two portions by a transverse ridge: one anterior, furnished with ligamentous imprints, exhibits, laterally, two deep excavations, which lodge the venous sinuses; the other, posterior, is smooth and concave from side to side, and forms an articular surface into which is received the odontoid process of the axis; this surface resembles the cotyloid cavity. The inferior spine of the body appears as a large tubercle. The head is absent, and is replaced by two concave facets. The anterior articular processes have their gliding surfaces looking downwards; they are joined to the two preceding facets to constitute two large diarthrodial cavities, which correspond to the occipital condyles. There is no spinous process, but a rough- ened surface instead. The transverse pro- cesses are large, flattened above and below, incline forwards and downwards, and are atlas; inferior surface. provided with a thick rugged lip. Pos- a, Articular processes for condyles of teriorly, quite at their base, and on each side the occipital bone; 2, ibidem; 3, of the spinal foramen, they show two large Vertebral or antero-internal fora- vertical facets which represent the posterior men; 4 Posterior, or cervical fora- articular processes; these facets are uneven, men: 5, Iransverse process; 6, /» t t -ii j_i i -j. ^ Tubercle representing the inferioi- ^re confounded With the articular cavity of spinous process; 7, Superior arch, the Upper face of the body, and correspond forming the roof of the spinal fora- to the two analogous facets of the axis. ^^^' Each transverse process is pierced at its base by two foramina, which traverse it from below upwards. The posterior repre- sents the veTtebral foramen of the other ver
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectveterinaryanatomy
