84__ 



impression from the meatal impression on the base of the gland. 

 The middle marking is the largest and is produced by the posterior 

 belly of the Digastric and is the most obvious hollowing on this sur- 

 face of the gland. The internal impression is a narrow strip of gland 

 surface which is related to the Styloid process and its muscles. The 

 antero-internal surface is very extensive and is applied to the posterior 

 border of the vertical ramus of the mandible and the more exten- 

 sive posterior borders of the Masseter and Internal Pterygoid muscles. 

 This causes a hollowing out of this surface in a U-manner. The outer 

 limb of the Ü is longer than the inner as it is produced into the 

 facial process of the gland, and the inner limb ends in relation with 

 the Pterygoid muscles. None of our specimens show prolongation of 

 this limb to form a definite Pterygoid lobe. 



The external surface is somewhat convex outwards in every 

 direction and requires no special comment. The same may be said 

 of the anterior and posterior borders. The internal border however, 

 merits special attention. For whilst below it is narrow and rounded, 

 it becomes considerably wider as it is traced upwards so that when 

 seen from the inside it is a narrow triangle with the base upwards. 

 Immediately behind this border lies the Styloid process, so that the 

 border itself lies against the space between the Styloid process and 

 Sphenomandibular ligament, and is in relation with the fat and areo- 

 lar tissue external to the pharynx. 



It is now necessary to review the relationship of the Styloid 

 process ^and its muscles in greater detail and also the relationship 

 that the blood vessels bear to the gland. . The Styloid process runs 

 obliquely downwards, forwards and inwards from the base of the 

 temporal bone, but it does not bisect the space between the Mastoid 

 process and mandible. It lies for a considerable part of its lower 

 extent under cover of the posterior border of the mandible. Of 

 course this relationship is variable and will depend upon the length 

 of the process. However this may be, the Styloid certainly does not 

 bisect the Parotid bed, but is nearer the anterior than the posterior 

 end of it, except at its origin from the basicranium. 



The gland is sometimes described as being wrapped round the 

 Styloid process. This is far from being the case. It is difficult to 

 pass one's finger beyond the Styloid in an inward direction, particu- 

 larly past its posterior border. The Styloid does not stand out as a 

 hard structure in the Parotid bed, in such a manner that the gland 



