Diseases of the nose and throat; a text-book for students and practitioners . middle, oro-pharynx, from the baseof the uvula to the base of the tongue; and an inferior, laryngo-pharynx, from the base of the tongue to the beginning of theoesophagus. The nasch or respiratory pharynx is bounded in front bythe posterior portion of the nasal space, the septum, turbinateds,and posterior surface of the soft palate; posteriorly, it is limitedby the tissues covering the vertebral column; laterally, by themouths of the Eustachian tubes (sometimes congenitallyoccluded) and Rosenmiillers fossae (pharyngea
Diseases of the nose and throat; a text-book for students and practitioners . middle, oro-pharynx, from the baseof the uvula to the base of the tongue; and an inferior, laryngo-pharynx, from the base of the tongue to the beginning of theoesophagus. The nasch or respiratory pharynx is bounded in front bythe posterior portion of the nasal space, the septum, turbinateds,and posterior surface of the soft palate; posteriorly, it is limitedby the tissues covering the vertebral column; laterally, by themouths of the Eustachian tubes (sometimes congenitallyoccluded) and Rosenmiillers fossae (pharyngeal recesses). Theoro-pharynx is bounded by the uvula, fauces, and base of thetongue, in front; posteriorly, it has the same limitation as thenaso-pharynx; laterally, it is confined by the muscles of thesides of the pharynx. This is the channel for air and food,and forms the upper part of the so-called alimentary pharynx,the lower portion of which is the Jaryngo-pharynx, Thislatter division is bounded posteriorly as the others, anteriorly 156 DISEASES OF THE NOSE AND Fig, 58.—Antkro-postero-vertical Section, Revealing Naso-pharyngo-laryn-GEAL. Region. Compare Frontispiece. (From a photograph.) ANATOMY AND PHYSIOLOGY OF PALATE AND PHARYNX. 157 by the larynx, and laterally by the same class of structures asfurnish boundary for the oro-pharynx. In front and back of the mouths of the Eustachian tubesare two prominent folds of tissue,—the Eustachian lips. Backof each posterior lip is one of the fossae of Rosenmiiller; thesecontain both mucous glands and adenoid tissue. At the lowerend of the naso-pharynx is a fold of tissue, composed of mucousmembrane, muscles, and glands, which stretches directly acrossthe posterior pharyngeal wall at this point. This is known asthe plica salpingo-pharyngea; it assists in the closure of the Cranial cavity Anterior ethmoid cells Middle ethmoid cells Posterior ethmoid cells Sphenoid cells Superior meatus. Basilar process Eustachian orifice
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherph, booksubjectnose
