THE ANATOMY OF THE ADULT HUMAN SALIVARY GLANDS 13, 



sory portion on the cephalic surface of the mylohyoid beyond the point 

 of emergence of the duct from the main gland. The duct (/) has been 

 divided and the free end turned cephalad to expose the mesal surface 

 of the lesser subhngual glands (j). 



Figure lo, also taken from an adult human body hardened before 

 dissection, gives another medial view of the submaxillary gland in 

 a case in which the greater sublingual or Bartholinian gland was 

 present. The accessory submaxillary element (i") forms a long nar- 

 row glandular band which extends forward nearly to the symphysis, 

 closely interlocked with both the greater (2) and lesser (j) sublingual 

 glands, all three elements entering into the composition of a macro- 

 scopic "massa sublingualis," whose constituents only become clear 

 when the individual distinct submaxillary and greater sublingual 

 glands are defined by differential injection through their ducts. 



Figure 15 gives a lateral view of the submaxillary complex, fully 

 exposed by the removal of the mandible, in another adult human 

 subject in which the greater sublingual or Barthohnian gland (2) was 

 present. 



The main submaxillary gland (/) is ovoid in shape. The cephahc 

 pole, from which the duct emerges, turns shghtly ventrad around the 

 mylohyoid border. The first portion of the duct receives the smaller 

 ducts of one dorsal and three ventral accessory subma.xillary glands 

 (/")• The most cephalic of the ventral accessory elements is the 

 largest, forming a bilobed mass resting on the geniohyoglossus and 

 entering the ventral circumference of the main submaxillary canal 

 by a short duct at the cephalic border of the hyoglossus. In the 

 natural position of the parts its cephalic pole rested against the medial 

 surface of the greater sublingual gland (2). The lesser sublingual 

 glands (j) form in this individual a relatively small mass, displaced 

 caudad in the figure in order to expose the underlying structures 

 covered by its medial surface in the natural position. 



Figure 16 shows the opposite side of the same subject in a similar 

 exposure. The greater sublingual gland is not developed. On the 

 other hand the lesser sublingual group (j) is more extensive, forming 

 two divisions, of which the larger extends dorsocaudad along the 

 lingual nerve into the faucial region. 



A group of five accessory submaxillary glands (i"), three dorsal and 



