Atlas and text-book of topographic and applied anatomy . • Infiindibulum (region of IBulla ethmoidalisiferior turbinated boneAccessory orifice of maxillary sir nerve Submaxillary duct Uvula Palatopharyngeal arch HypogbPalatoglossalFaucial tonsi!. Sublingu; Mandible THE NASAL CAVITY. 53 toward the base of the brain. The relation of the sinus to the internal carotid artery, which maylead to fatal hemorrhage from the nose, has been already mentioned (see page 31). The openingof the sinus into the nasal cavity is in the so-called sphenoethmoidal recess, behind and abovethe superior turbinated bone
Atlas and text-book of topographic and applied anatomy . • Infiindibulum (region of IBulla ethmoidalisiferior turbinated boneAccessory orifice of maxillary sir nerve Submaxillary duct Uvula Palatopharyngeal arch HypogbPalatoglossalFaucial tonsi!. Sublingu; Mandible THE NASAL CAVITY. 53 toward the base of the brain. The relation of the sinus to the internal carotid artery, which maylead to fatal hemorrhage from the nose, has been already mentioned (see page 31). The openingof the sinus into the nasal cavity is in the so-called sphenoethmoidal recess, behind and abovethe superior turbinated bone; the orifice of the sinus, as is the case in the antrum of Highmore, issituated near its roof (see Fig. 19). The air-cells of the lateral masses of the ethmoid bone, which occupy the upper portion of theouter wall of the nasal fossas (see Figs. 15, 16, and 17), have previously been described (seepage 43), and it will readily be understood that this spongy partition between the orbital andnasal cavities may easily disappear as the result of the pressure of tumors growing into the orbitfrom the ethmoidal cells or from the nasal fossa. The openings leading to the ethmoidal cellsare to be found upon the outer wall of the nasal fossa. In Fi
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