. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. the sphenoid and 876. Where is the sense of smell located ? 8?7—884. Give the anatomyof the organs of smell. 877. Name the parts that enter into the structureof the nose ? 878. What bones form the framework of \he nose ?879. What is the use of the cartilages ? 880, What relation has themucous membrane with other membranes of the nose ? 881. Des(?^h9the nasal cavities. 33* 3S0 ANATOMY, PHYSIOLOGY, AND HYGIENE ethmoid bones ; iiiferiorly, by the hard palate. In the middleline they are separated from
. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. the sphenoid and 876. Where is the sense of smell located ? 8?7—884. Give the anatomyof the organs of smell. 877. Name the parts that enter into the structureof the nose ? 878. What bones form the framework of \he nose ?879. What is the use of the cartilages ? 880, What relation has themucous membrane with other membranes of the nose ? 881. Des(?^h9the nasal cavities. 33* 3S0 ANATOMY, PHYSIOLOGY, AND HYGIENE ethmoid bones ; iiiferiorly, by the hard palate. In the middleline they are separated from each other by a bony and fibro-cartilaginous septum ; upon the outer wall of each fossa, inthe dried skull, are three projecting processes, termed spongybones. In the fresh fossa, these are covered by a mucousmembrane. 882. The space that intervenes between the superior andmiddle spongy bone, is called the superior me-atus^ or chan-nel ; the space between the middle and inferior bone, is themiddle meatus; and that between the inferior bone and thefloor of the fossa, is the inferior Fig. ]35. A vertical section of the middle pnrt of tlie nasal cavities. 7, TheRiiddle spongy bones. 8, Tlie sujierinr part of the nasal cavities. 10, The inferiorBpongy bones. 11, The vomer. 12, The upper jaw. 13. The middle channel of thenose. 14, The lower chanjiel of the nose. 17, The palatine process of the upper 18, Tlie roof of tlie mouth covered by mucous membrane. 19, A section ofthis membrane. 883. The MEATUSES are passages that extend backward,intD which are several openings. They are lined by a mucousmembrane, called the pi-tu/i-ta-ri/^ or schneiderian, from 882. What terms are applied to the spaces between these processes ?^^at does fig. 135 represent ? 883. Define the meatuses. By what areIpey lined? PHYSIOLOGY OF THE ORGANS OF SMELL. 391 Schneider, wlio first showed that the secretion of the nasalfossae proceeded from the mucous membrane, and not fromthe brain. 884
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