. The comparative anatomy of the domesticated animals. Veterinary anatomy. 58 THE BONES, surpasses the mastoid process, and is prolonged to the mastoid protuberance. The latter is very voluminous. The subuliform proceas is larger and stronger than in the Horse ; and there is no mastoid fissure. In the Shee^p and Goaf^ the mastoid process is scarcely distinct from the crest; and the mastoid portion of the bone is only at a late period consolidated with the petrous portion. Fig. ox's HEAD*, POSTERIOR FACE. A, Parietal bone.—1, Occipital foramen; 2, Occipital condyle; 3, Styloid process of t
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 58 THE BONES, surpasses the mastoid process, and is prolonged to the mastoid protuberance. The latter is very voluminous. The subuliform proceas is larger and stronger than in the Horse ; and there is no mastoid fissure. In the Shee^p and Goaf^ the mastoid process is scarcely distinct from the crest; and the mastoid portion of the bone is only at a late period consolidated with the petrous portion. Fig. ox's HEAD*, POSTERIOR FACE. A, Parietal bone.—1, Occipital foramen; 2, Occipital condyle; 3, Styloid process of that bone; 4, Condyloid foramina; 5, Mastoid process; 6, Mastoid protuber- ance ; 7, Subuliform (temporal) process; 8, Hyoideal sheath ; 9, Stylo-mastoid foramen; 10, External auditory hiatus; 11, Inferior orifice of the parieto-tem- poral canal; 12, Temporal condyle; 13, Posterior foramen lacerum; 14, Oval foramen; 17, Subsphenoidal process; 18, Orbital hiatus; 19, Optic foramen.— B, Frontal bone.—20, Superciliary foramen; 21, Orbital foramen; 22, Lachrymal protuberance.—C, Zygoma.—23, Pterygoid bone.—D, Palate bone.—24, Nasal fora- men ; 25, Inferior orifice of the palatine canal.—E, Supermaxillary bone.—26, Maxillary spine.—G, Premaxillary bone.—27, Its internal process; 28, External process; 29, Incisive openings. 7. Supermaxillary hone.—In the Ox, Sheep, and Goat, the maxillary spine does not directly join the zygomatic crest a curved line, whose concavity is posterior, effects the union between these two parts. The inferior orifice of the supermaxillo-dental canal or infraorbital foramen is pierced above the first molar tooth. There is no fissure for the formation of the palatine canal. The cavity of the sinus is more spacious than in the Horse, and is prolonged (in the Ox only) between the two laminae of the palatine roof. There is no alveolus for the tusk. 8. Premaxillary bone.—The inferior or principal portion of this bone is flattened before.
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectveterinaryanatomy
