. The anatomy of the domestic animals . Veterinary anatomy. 74 THE SKELETON OF THE HORSE external acoustic process projects outward through a deep notch in the ventral margin of the squamous temporal below the temporal crest. A little further back is the mastoid process, crossed in its upper part by a groove for the posterior meningeal artery. The orbital region comprises the orbit and the pterygo-palatine fossa. The Nuchal crest Occipital Interparietal Parietal Squamous temporal Frontal. Parietal crest Temporal fossa Temporal crext ^: Coronoid process Zygomatic arch Supraorbital process Supra
. The anatomy of the domestic animals . Veterinary anatomy. 74 THE SKELETON OF THE HORSE external acoustic process projects outward through a deep notch in the ventral margin of the squamous temporal below the temporal crest. A little further back is the mastoid process, crossed in its upper part by a groove for the posterior meningeal artery. The orbital region comprises the orbit and the pterygo-palatine fossa. The Nuchal crest Occipital Interparietal Parietal Squamous temporal Frontal. Parietal crest Temporal fossa Temporal crext ^: Coronoid process Zygomatic arch Supraorbital process Supraorbital foramen Orbit Facial crest I nfriiDrbilal foramen Nasal process of preninxilla Body of premaiillii Foramen incisivum Fig. 47.—Skull of Horse; Dorsal View. 1, Parieto-occipital suture; 2, squamous suture; 3, parietal suture; 4, parieto-frontal suture; 5, frontal suture; 6, naso-frontal suture; 7, naso-lacrimal suture; 8, lacrirao-malar suture; 9, lacrimo-maxillary suture; 10, maxillo- malar suture; 11, naso-maxillary suture; 12, nasal suture. orbit is a cavity which incloses the eyeball, with the muscles, vessels, and nerves associated with it. It is not separated in the skeleton from the temporal fossa. The axis of the orbit (Axis orbitae), taken from the optic foramen to the middle of the inlet, is directed forward, outward, and slightly upward. The medial wall (Paries medialis) is complete and extensive. It is concave and smooth, and is formed by the frontal and lacrimal and the orbital wing of the sphenoid. In its. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sisson, Septimus, 1865-1924. Philadelphia ; London : W. B. Saunders Company
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