OF THE NOSE. 



447 



Fig. 117.* 



suture between the ossa nasi. Tliis edge forms an angle with 

 the lower edge of the same cartilage, which continues from it 

 in a horizontal direction, until it reaches the lower part of the 

 orifice of the nose, at the junction of the palatine processes of 

 the upper maxillary bones; where a bony prominence is 

 formed, to which it is firmly united. The upper part of the 

 anterior edge of this cartilage, which is in contact with the ossa 

 nasi, is flat, and is continued into two lateral portions that are 

 extended from it one on each side, and form a part of the nose : 

 these lateral portions are sometimes spoken of as distinct carti- 

 lages, (superior lateral,) but they are really continuations of 

 the middle portion or septum. 



Below the lower edge of these late- 

 ral portions are situated the fibro carti- 

 lages which form the orifices of the 

 nose, or the nostrils. Of these, there is 

 one of considerable size, (inferior late- 

 ral,) and several small fragments, on 

 each side of the septum. Each of the 

 larger cartilages forms a portion of an 

 oval ring, which is placed obliquely on 

 the side of the septum : so that the 

 extremity of the oval points downward 

 and forward, while the middle part of 

 the oval is directed upwards and back- 

 wards. The sides of this cartilage are 

 flat, and unequal in breadth. The narrowest side is internal, 

 and projects lower down than the cartilaginous septum ; so that 

 it is applied to its fellow of the other nostril. The external 

 side is broader, and continues backward and upward to a con- 

 siderable distance. • 



* — a, b, Ossa nasi, which show above, the serrated surface by which they 

 are united to the os frontis. c, d, Superior lateral cartilage. «, Vertical carti- 

 laginous septum of the nose. /, /, Sesamoid cartilages, filling up part of the 

 vacuity here, g, I, Oval or inferior lateral cartilages, or cartilages of the alac 

 nasi ; below they are thin and curved so as to form the arch of the anterior 

 nares. h, z, k, Small square cartilages appended to the alac nasi and circum- 

 scribing the outer and back part of the nostrils, to, n, o, Same parts of the 

 right side. 



