. Cunningham's Text-book of anatomy. Anatomy. MAXILLAEY NERVE. 775 Neevus Maxillaeis. The Maxillary Nerve.—This large nerve courses forwards from its origin in the semilunar ganglion through the middle fossa of the skull, beneath the dura mater, and in relation to the lower part of the cavernous' sinus (Fig. 647, p. 771). Passing through the foramen rotundum, it traverses the pterygopalatine fossa. It enters the orbit as the infra-orbital nerve, through the inferior orbital fissure, and occupying successively the infra-orbital groove and canal, it finally appears on the face through the infra-
. Cunningham's Text-book of anatomy. Anatomy. MAXILLAEY NERVE. 775 Neevus Maxillaeis. The Maxillary Nerve.—This large nerve courses forwards from its origin in the semilunar ganglion through the middle fossa of the skull, beneath the dura mater, and in relation to the lower part of the cavernous' sinus (Fig. 647, p. 771). Passing through the foramen rotundum, it traverses the pterygopalatine fossa. It enters the orbit as the infra-orbital nerve, through the inferior orbital fissure, and occupying successively the infra-orbital groove and canal, it finally appears on the face through the infra-orbital foramen (Fig. 653). The branches and communications of this nerve occur (a) in the cavity of the cranium, (5) in the pterygo-palatine fossa, (c) in the infra-orbital canal, and (d) on the face. Supra-trochlear branch _- Supra-orbital branch Lacrimal gland Levator palpebrae superioris Frontal nerve— Naso- ciliary nerve — Lacrimal nerve-— Rectus lateralis ~ Superior orbital fissure Ophthalmic division of trigeminal Maxillary division of trigeminal Mandibular division of trigeminal Semilunar. Infra-trochlear nerve Obliquus superior muscle Anterior ethmoidal nerve rrochlear nerve Xaso-ciliarv nerve -Optic nerve Internal carotid artery ~~Oculo-motor nerve Trochlear nerve Trigeminal nerve Fig. 651.—The Nerves of the Orbit from above. In the cavity of the cranium the nerve gives off a minute (n. meningeus medius) middle meningeal ( recurrent nerve) to the dura mater of the middle fossa of the skull. In the pterygopalatine fossa the nerve gives off—(1) two short thick nn. spheno- palatine (sphenopalatine nerves), the sensory roots of the spheno-palatine ganglion (2) Rami alveolares superiores posteriores (posterior superior alveolar nerves, which may be double), descend through the pterygo-maxillary fissure to the lateral side of the maxilla, and proceed forwards along the alveolar arch, in company with the posterior superior alveolar artery. They supply the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
