. The anatomy of the domestic animals . Veterinary anatomy. BONES OF THE SKULL—CRANIUM 189 The interparietal bone fuses with the occipital before birth. It bears the high posterior part of the parietal crest, and is wedged in between the two parietal bones It forms the central part of the tentorium osseum, which is thin and curved, con- cave ventrally. Its base concurs with the occipital and parietal bones in the for- mation of a transverse canal which is continuous with the temporal canals. The parietal bone is rhomboid in outline and is strongly curved. It is exten- sive and forms the greate
. The anatomy of the domestic animals . Veterinary anatomy. BONES OF THE SKULL—CRANIUM 189 The interparietal bone fuses with the occipital before birth. It bears the high posterior part of the parietal crest, and is wedged in between the two parietal bones It forms the central part of the tentorium osseum, which is thin and curved, con- cave ventrally. Its base concurs with the occipital and parietal bones in the for- mation of a transverse canal which is continuous with the temporal canals. The parietal bone is rhomboid in outline and is strongly curved. It is exten- sive and forms the greater part of the roof of the cranial cavity. At the junction of the right and left bones there is a prominent parietal crest which is continued upon the frontal bones. The ventral border articulates with the temporal wing of the sphenoid by its anterior part and with the squamous temporal in the remain- der of Its extent. The external surface enters into the formation of the temporal. Fig. 208.—Skull of Dog; Lateral View. A, Occipital bone; B, parietal bone; C, squamous temporal bone; D, frontal bone; E, lacrimal bone; F, malar bone; G, perpendicular part of palatine bone; H, maxilla; /, premaxilla; J, nasal bone; K, mandible; 1, parietal crest; 2, occipital condyle; 3, paramastoid process; 4, stylo-mastoid foramen; 5, bulla ossea; 6, meatus acusticua externus; 7, external opening of temporal canal; 8, postglenoid process; 9, zygomatic process of temporal bone; 10, zygomatic process of malar bone; 11, supraorbital process; 12, entrance to lacrimal canal; 13, infraorbital foramen; 14, mental foramina; 15, condyle of mandible; 16, coronoid process; 17, mandibular notch; 18, angular process; 19, masseteric fossa; i. i', incisor teeth c, c', canine teeth. fossa. The cerebral surface is marked by digital impressions, and by grooves for the middle meningeal artery and its branches. The external surface of the frontal bone is crossed by a frontal crest, which extends in a curve from
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