354 



MAMMALIAN ALVEOLINGUAL SALIVARY AREA 



attached to the postglandular flange. The debouchment of this 

 gland into the submaxillary, possibly depends upon the adherence of 

 its anlage to the submaxillary duct at the time of its separation, with, 

 in addition, the presence of interruption in the keel of the subUnguaUs 



major. 



7. The sublinguals minores are derived from simple sprouts. In 

 their highest development they extend from the caruncula salivaris to 

 the arcus palatinus, where they may be continuous with the isthmian 

 glands. The anterior or posterior members of the series may be 

 suppressed. In man the earhest sprouts appear in the course of the 

 circumflex sulcus, and are associated with an epithelial keel. This 

 condition, which is evanescent, is intermediate between that of 

 separate sprouts and the keels of the larger glands. Later they have 

 been found arising diffusely from the surface of the plica sublingualis. 

 This formation proceeds from before backwards along the gutter, 

 lateral to the ducts of the larger glands. The later stages of their 

 development, in particular their origin from the mesal portion of the 

 gutter, require investigation. Reichel has described their attachment 

 to the Ungual sulcus caudal to the submaxillary. In the pig they are 

 stated to arise diffusely from the first. In the cat the anterior members 

 of the series are suppressed. The earhest sprouts arise from the cir- 

 cumflex sulcus near the lingual nerve. 



8. The apical gland in man, or one of its elements, appears to be a 

 keeled gland arising from the mesal lameUa of the flange of the sub- 

 maxillary. This position may be secondary. It advances by the 

 constriction and the separation of its keel. 



BIBLIOGRAPHY 



BujARD, EuG. 1911. Reconstruction plastique des glandes salivares d'un fcetus 



humain de 10 semaines environ. Anat. Anzeiger, Bd. 38, 4, 5. 

 Chiemtz, J. H. 1885. Beitriige zur Entwickelungsgeschichte der Speicheldriisen. 



Arch. f. Anat. u. Physiol. Anat. Aht. 

 CtrviER. 1810. Vorlesungen iiber verglcichende .\natomie. Leipzig. 

 Gegenbauer, Carl. i8q8. Verglcichende Anatomie der Wirbelthiere. Leipzig. 

 GOPPERT, E. 1902. Die Entwickelung des Mundes und der Mundhohle mit 



Driisen und Zunge. Hertwig's Handbuch der EnHfickdungsgesh, d. 2, Th. i. 

 Hammar, J. August, iqoi. Notiz iiber der Entwickelung derZungc und der Mund- 



speichcldrusen beim Menschen. .\nat. Anzeiger, Bd. 19. 



