. The comparative anatomy of the domesticated animals. Veterinary anatomy. 66 TEE BONES. external face is divided into two portioiis by a vertical crest; the portion situated in front of this crest forms part of the lachrymal channel. By its interaal face, the lachrymal bone limits, outwardly, the bottom of the nasal cavities, and covers tiie anterior cells of the ethmoid; by its po.^teriur border, within the orbit, it articulates with the os planum of the ethmoid. 11. Nasal bone.—The proper bones of the nose of Man exhibit a great analogy to those of the Dog. They do not possess a nasal prolo
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 66 TEE BONES. external face is divided into two portioiis by a vertical crest; the portion situated in front of this crest forms part of the lachrymal channel. By its interaal face, the lachrymal bone limits, outwardly, the bottom of the nasal cavities, and covers tiie anterior cells of the ethmoid; by its po.^teriur border, within the orbit, it articulates with the os planum of the ethmoid. 11. Nasal bone.—The proper bones of the nose of Man exhibit a great analogy to those of the Dog. They do not possess a nasal prolongation, and they articulate with the lateral cartilage of the nose. li2. Vomer.—The same general form and relations as in solipeds. 13. Inferior maxillary bone.—This bone in Man is in shape somewhat like a horse- shoe. It is nearly of the same width throughout its whole extent. The symphysis is vertical—a character peculiar to Man. Below this symphysis is a triangular ])rojection, the mental eminence The genial surface of the Horse is replaced by four little tubercles termed the genial processes. The alveoli of the molar teeth form a great projection on the inner face of the bone. The mylo-hyoid ridge is very developed. The superior orifice of the dental canal is covered by a little sharp lamina. From this orifice begins the mylo-hyoidean groove. The coronoid process is short; the condyle is bent towards the median line, and the sigmoid notch is wide and shallow. The superior border contains fourteen or sixteen alveoli. Article III.—The Thoeax. Tlie thorax represents a conoid cage, elongated from before to behind, suspended under the vertebrae of the dorsal region, and destined to contain the principal organs of resjiiration and circulation. It is composed of bony arches named ribs, thirty-six in number—eighteen on each side—and a single piece, the sternum, which serves for the direct or indirect support of the inferior extremities of the ribs. THE BONES OF THE T
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