34 SURGICAL ANATOMY OF 



ing out the nostrils, it will be found that if the mouth 

 be open and the nozzle of the instrument be introduced 

 into one of the anterior openings, the current of fluid 

 will wash out the entire nasal cavity, and pass out 

 through the other again. In the case of the introduc- 

 tion of the mirror in posterior rhinoscopy, the palate 

 must be forced forward by the emission of nasal sounds, 

 or drawn forwards by hooks or forceps constructed for 

 the purpose. 



Nasal polypi of the fibro-cellular variety developed 

 in the submucous tissue of this region are covered with 

 ciliated epithelium, and are usually attached to one of 

 the superior turbinated bones. The more formidable 

 forms of growths generally project into the fossae from 

 the antrum or base of skull. The posterior nares, oval 

 in form and of the same shape as their bony boundaries, 

 enter into the formation of a region termed the naso- 

 pliaryngecd, situated midway between the nasal fossae 

 and the pharynx. It is formed also by the body of the 

 sphenoid, the basilar process, and the pterygoid plates. 



The basilar process is the usual locale of naso-pha- 

 ryngeal polypi, and its situation is readily recognized 

 by passing the finger behind the velum pendulum palati, 

 which frequently has to be divided in order to remove 

 such growths. 



SUKGICAL ANATOMY OF THE KEGION OF THE 

 OKBIT. 



In the following short description of the orbital region 

 those parts only of the eyeball and appendages of the 

 eye which are the seat of the ordinary surgical oper- 

 ations are treated of. An account of those parts which 

 are contained within the globe, and of the operative 



