nil BO] > mi 



cribriform plate of the ethmoid, and posterii I 

 its anterior ami ]><>-!< irior portions also form, 



of tin- nasal by th< 



ed of the palatine pi f the maxilla: and tl 



Tin- interna] or median wall th ami 



Ix-ii mplete in the boi n. Th< 



median v.. ill I plum, tin- anti 



perpendicular plat< of the ethmoid bone, tin- ■ 

 attached al><»\t- t<> tin- frontal i rest of tin- frontal !•• 

 ami behind and above to tin- sphenoidal crest ami rostrum. 



I rnal nasal wall I , ici and 



the five in of which an- rolled up upon themselvt 



con 



Tin- inferior "f these i> an independent ' 

 and longest of tin- turbinated bones, while t; 

 and middle turbinated bones arc pro ihmoid 



Tin- outer portion of each nasal divided into threi 



n the superior and mi 

 between tin- middle ami inferior turbinat .ml th 



tin- inferior turbinated bone and the- floor of tin- nasal 

 in tin- superior meatus is situated a cleft-lil i 



The porti the nasal I ituated the inner mai 



and the nasal septum i-> termed the common i 

 behind th< tremities of the turbinated 



pharyngeal m 



The external na !1 is formed by tin- foll< 



tioi the nasal surface of the frontal pi ■■ the maxill 



ami th< i the body ^i thi 



the palate Ix'in- rior inferior portion); the i Idle 



ami the inner surface of the lachrymal 

 oi the middle meatu 



In addition to the main nasal cavity tin-- 

 air-containing cavitii the majority of tl 

 sphenoid, and ethmoid. 



There is a large nui Kadi: 



The foramina of the < rm plate of the cthn 



transmitting tin- olfactory nerves and tin- r ethmoidal 



rhe superior orifice ^i tin- incisive canal 1 >t in 



the floor of the nasal cavity, which transmits the t< 

 and nerve. 



The inferior orifice of the nasolachryi . which contains 



the nasolachrymal duet. 



