Diseases of the throat : a guide to the diagnosis and treatment of affections of the pharynx, oesophagus, trachea, larynx, and nares / By J. Solis Cohen.

  • Cohen, J. Solis (Jacob Solis), 1838-1927.
Date:
1872
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the throat : a guide to the diagnosis and treatment of affections of the pharynx, oesophagus, trachea, larynx, and nares / By J. Solis Cohen. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

    41/612 (page 19)
    This condition of things will be rendered intelligible at a glance by consulting the accompanying illnstration, Fig. 9. The structures (base of tongue, and epiglottis) ^°' '' which are above and in front in the patient, appear above and behind in th( mirror; the parts (arytenoid cartilages, etc.) which ari below and behind in the patient, appear below and in front in the mirror; but the structures which are in reality on the right hand of the observer in the patient, are on his right in the mir- ror also. In other words, those parts nearest the mir- I'or are seen as if they were nearer the observer, who views them very much as he woidd do if he could look at them from behind with his eye in the position of the laryngeal mirror. The lower figure represents a view of the base of the tongue and the larynx in the relative position they bear in the person who is being examined, while the upper figure shows the im- age as seen in the mirror. If the reader will hold a laryngosco- pic mirror (or, in lieu of it, a piece of looking-glass) obliquely above the lower figure and behind it, so as to receive its reflec tion, he will get some such an image as is pictured in tlie upper figure. This diagram will be found useful in studying tJie rela- tion of parts in actual practice. There are.certain important points in reference to the intro- duction of the laryngoscopic mirror which require elucidation with some detail. The mirror must be warmed before it is passed into the mouth. If introduced cold it will become blurred by the Relative relations of laryns and its image in the laryngoscopic mirror.