The anatomist's vade mecum : a system of human anatomy . ined surface (clivus Blumen-bachii), which is continuous with the basilar process of the occipitalbone. On either side of the sella tmcica is a broad groove {carotid)which lodges the internal carotid artery, the cavernous sinus, and theorbital nerves. Immediately external to this groove, at the junctionof the greater wings with the body, are four foramina: the first is abroad interval, the sphenoidal fissure, which separates the greater and * These depressions are occasionally, as in a skull before me, converted intoforamina by the exten
The anatomist's vade mecum : a system of human anatomy . ined surface (clivus Blumen-bachii), which is continuous with the basilar process of the occipitalbone. On either side of the sella tmcica is a broad groove {carotid)which lodges the internal carotid artery, the cavernous sinus, and theorbital nerves. Immediately external to this groove, at the junctionof the greater wings with the body, are four foramina: the first is abroad interval, the sphenoidal fissure, which separates the greater and * These depressions are occasionally, as in a skull before me, converted intoforamina by the extension of a short bony piUar from the middle to the anteriorclinoid process. D 3 36 SPHENOID BONE. lesser wings, and transmits the third, fourth, the three branches of theophthalmic division of the fifth and the sixth nerves, and the oph-thalmic vein. Behind and beneath this fissnre is Wqforamen rotimdumfor the superior maxillary nerve; and still farther back, in the base ofthe spinous process, ike foramen ovale for the inferior maxillary nerve, Fig. 20,. arteria meningea parva, and nervus petrosus superficialis the foramen ovale, near the apex of the spinous process, is theforamen spinosum for the arteria meningea media. Upon the aiitero-inferior surface of the sphenoid is a long flattenedspine or crest, the superior part of which, crista sphenoidalis, articulateswith the central lamella of the ethmoid, while the inferior part, longerand sharper, the rostrum sphe7ioidale, is intended to be inserted intothe sheath formed by the upper border of the vomer. On either side * The superior or cerebral surface of the sphenoid bone. 1. The processusolivaris. 2. The ethmoidal spine. 3. The lesser wing of the left side. 4. Thecerebral surface of the greater wing of the same side. 5. The spinous pro-cess. 6. The extremity of the pterygoid process of the same side, pi-qjectingdownwards from the under surface of the body of the bone. 7. The foramenopticum. 8. The anterior clinoid
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
