. The anatomy of the domestic animals. Veterinary anatomy. 60 THE SKELETON OF THE HORSE deep sphenoidal notch (Incisura siihenoidalis), which is closed by the orbital wing of the sphenoid. Its lateral surface forms part of the inner wall of the temporal fossa. Tlie medial surface is larficly covered by the orbital wing of the sphenoid in the young suljject, loit later tornis part of the wall of the frontal sinus. The principal connections i)f the frontal bone are as follows: (1) The medial border joins its fellow at the frontal suture. (2) The anterior l)order meets the nasal and lacrimal at t
. The anatomy of the domestic animals. Veterinary anatomy. 60 THE SKELETON OF THE HORSE deep sphenoidal notch (Incisura siihenoidalis), which is closed by the orbital wing of the sphenoid. Its lateral surface forms part of the inner wall of the temporal fossa. Tlie medial surface is larficly covered by the orbital wing of the sphenoid in the young suljject, loit later tornis part of the wall of the frontal sinus. The principal connections i)f the frontal bone are as follows: (1) The medial border joins its fellow at the frontal suture. (2) The anterior l)order meets the nasal and lacrimal at the naso-frontal and fronto-lacrimal sutures. (3) Laterally it forms the spheno-frontal suture with the orljital wing of the sphenoid, and also joins the palatine Ijone and maxilla at the fronto-palatine and fronto-maxillary sutures. (4) Posteriorly it meets the parietal at the parieto-frontal suture, ami artii-ulates below this with the squamous temporal at the squamous suture. (5) The extremity of the supraorbital process unites with the zygomatic process of the temporal bone. Development.—Each ossifies in membrane from one center wdiich appears in the root of the supraorl)ital process. In the new-born foal there is a slit between the cranial plate and the orbital and temporal plates which receives the unossified dorsal jiart of the orbital wing of the s])henoid. The Temporal Bones The temporal bone (Os tem])oraIe) forms the greater part of the lateral wall of the craniuuL It is situated between the occipital behind, the parietal dorsally, the frontal in front, and the sphenoid ventrally. It consists in the horse of two parts, squamous ;uid petrous. 1. The squamous temporal bone (Squama temporalis) is a shell-like plate which has two sui'faccs and four borders. The cerebral surface (Facies cerebralis) is concave and is largely overlapped by the surrounding bones, but its central part is free and presents digital impres- sions and vascular grcioves. The temporal sur
Size: 2705px × 924px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
