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 naso- 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 Rosenmullers fossse (pharyngeal
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 naso- 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 Rosenmullers fossse (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 laryngo-pharynx. Thislatter division is bounded posteriorly as the others, anteriorly 156 DISEASES OF THE NOSE AND Fig. 58.—Antero-postero-vertical, Section, Revealing Naso-pharyngo-laryn-GEAii 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. \ J|i3R -Frontal sinuses Middle ethmoid cells ^_^ ^\^^J Nasal vestibule Posterior ethmoid cells^. Sphenoid cel
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherph, booksubjectnose
