File:Atlas and text-book of topographic and applied anatomy (1905) (14596827679).jpg

Identifier: atlastextboo00schu (find matches)
Title: Atlas and text-book of topographic and applied anatomy
Year: 1905 (1900s)
Authors: Schultze, Oskar Max Sigismund, 1859-1920 Stewart, George David, b. 1862 Thomas, W. Hershey
Subjects: Anatomy Anatomy, Surgical and topographical
Publisher: Philadelphia and London : W. B. Saunders & company
Contributing Library: West Virginia University Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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the pleura, and eitherbreak into the pleural cavity (see Plate 8, b) or lead to pericarditis by extending to the pericardium(see Fig. 51). The relation of the pharynx to the cervical vertebras makes it possible to diagnos-ticate vertebral fractures and dislocations by inspection and palpation through the oral cavity;for example, from the relation of the anterior arch of the atlas to the posterior pharyngeal wall (seePlate 4) it is clear that when the atlas is dislocated anteriorly it may be recognized as a hardprominence in the posterior pharyngeal wall. It will also be readily understood that diseases ofthe cervical vertebras (such as caries) may lead to retropharyngeal abscess or to perforation and Fig. 21 Clivus Pharyngeal tonsil Superior turbi Nasal cavityMiddle turbinated boneInferior turbinated bone Epiglottic tubercle Cuneiform tubercle of Wrisberg) Corniculate tubercle (of Santorini) Sinus piriformis Esophagus < Inlicr of Euvi.ulii.i Palatopharyngeal archPalatoglossal arch
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Mastoid process Lateral glossoepiglotticfold Aryepiglottic fold Plica nervi laryngeitenoid notch THE ORGAN OF HEARING. 59 the extrusion of pieces of bone into the pharynx. The median sagittal section illustrated inPlate 4 shows that tumors proceeding from the anterior surface of the cervical vertebras, fromthe clivus, or from the body of the sphenoid meet with little resistance in the direction of thepharynx, and may grow through the choanal into the nasal fossas and then extend into the acces-sory nasal cavities or through the cribriform plate into the cranial cavity; they may also pushdown the soft palate and grow toward the mouth. THE ORGAN OF HEARING. The cartilaginous meatus is bounded anteriorly by the parotid gland, and tumors and in-flammatory swellings of the gland may consequently lead to a narrowing of the auditory canal.The anterior wall of the bony meatus is formed by the thin tympanic plate of the temporal bone.This tympanic plate is the partition between the temporo-max

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