20 ANATOMY OF THE HEAD AND NECK. 



foramen, and are distributed like the accompanying nerve, 

 anastomosing with branches of the facial artery. 



The ZYGOMATICUS MINOR MUSCLE is the internal of two 

 slender muscular slips passing from the malar bone to the 

 angle of the mouth ; it arises from the face of the malar 

 bone and passes obliquely to the integument of the lip 

 near its angle, where it is inserted, blending with the in- 

 sertion of the levator labii superioris proprius. This mus- 

 cle is very often wanting, and, when present, seems to be 

 a bundle of fibres of the orbicularis palpebrse detached, to 

 pass downward to the angle of the lips. 



The ZYGOMATICUS MAJOR MUSCLE arises outside the pre- 

 ceding, from the surface of the malar bone near its external 

 angle, and is inserted into the integument of the angle of 

 the lips, blending with the orbicularis oris. As its name 

 implies, this muscle is considerably larger than its com- 

 panion. 



The LEVATOR ANGULI ORIS arises from the canine fossa 

 of the superior maxillary bone, and is covered in by the 

 levator labii superioris proprius,; it is inserted into the 

 angle of the mouth, where it confounds itself with the 

 orbicularis oris and the other muscles converging at that 

 point. 



The DEPRESSOR LABII SUPERIORIS AL^QUE NASI can 

 only be seen by turning the upper lip inside out and 

 dissecting off the mucous membrane on each side of the 

 frenum ; it is a small, pale muscle, not easily detected, the 

 fibres of which are confounded with those of the orbicularis 

 oris ; it arises from the fossa in the superior maxillary bone 

 just above the incisor teeth, and is inserted into the upper 

 lip and the cartilages of the ala and septum of the nose. 



The COMPRESSOR NASI expands in a radiated manner 

 upon the side of the nose ; its fibres are very thin and pale, 

 and its origin is covered in by the levator labii superioris 

 proprius ; it arises from the canine fossa of the superior 

 maxillary bone, and ends in an aponeurosis covering the 

 cartilaginous part of the nose, joining the tendon of the 

 other side : its precise limits are difficult to establish. 



The CARTILAGES OF THE NOSE are five in number, two 

 on each side, and one in the centre, the latter forming the 

 septum of the nostrils. The superior are called the lateral 

 fibro-cartilages ; they are triangular in shape, and are 

 attached posteriorly to the nasal bones and the nasal pro- 

 cess of the superior maxillary bone ; anteriorly they are 



