. The anatomy of the domestic animals . Veterinary anatomy. CRANIUM 169 upper part of the medial wall of the latter. The supraorbital process is short and blunt-pomted, and is not connected with the zygomatic arch. The gap in the or- bital margin is closed by the orbital ligament in the fresh state. The orbital part IS extensive and forms the greater part of the medial wall of the orbit. Its upper part IS perforated by the orbital orifice of the supraorbital canal, in front of which IS the distinct fovea trochlearis. The ethmoidal foramen is situated in the ventral part near the junction with
. The anatomy of the domestic animals . Veterinary anatomy. CRANIUM 169 upper part of the medial wall of the latter. The supraorbital process is short and blunt-pomted, and is not connected with the zygomatic arch. The gap in the or- bital margin is closed by the orbital ligament in the fresh state. The orbital part IS extensive and forms the greater part of the medial wall of the orbit. Its upper part IS perforated by the orbital orifice of the supraorbital canal, in front of which IS the distinct fovea trochlearis. The ethmoidal foramen is situated in the ventral part near the junction with the orbital wing of the sphenoid. The temporal part IS very narrow and is separated from the orbital plate by a ridge which joins the Parietal bone Temporal fossa Squamous lempornl bone External acoustic meatus Zygomatic process of temporal bone Supraorbital pro- cess Frontal bone Supraorbital fora- men Zygomatic process of malar hone Lacrimal bone Infraorbital foramen A'asal process of premaiilla Nasal bone Canine tooth Palatine fissure Body uf premaxilla. Nuchal crest Temporal crest Parietal crest Lacrirnal foramen Preorbital fossa Fig. 179.—Skttll of Pig; Dorsal View. pterygoid crest below. The interior of the bone is excavated by the frontal sinus in practically its entire extent in the adult. In the young subject the cavity is con- fined to the anterior part and the rest of the bone is thick. The temporal bone has a general resemblance to that of the ox. The zygo- matic process is short and stout and is bent at a right angle. The dorsal border of the process is thin; traced from before backward it curves sharply upward and forms a high prominence in front of the external acoustic meatus; beyond this it drops rather abruptly and is then continued upward to the nuchal crest. The anterior part of the ventral border joins the zygomatic process of the malar, which. Please note that these images are extracted from scanned page images that may have been digitally enhanced for r
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