2 2 THE ANATOMY OF THE ADULT HUMAN SALIVARY GLANDS 



III. SEPARATE SMALL GLANDS OF THE LINGUAL, LATERAL, AND 

 PHARYNGEAL REGIONS 



The relations of the isthmian group (j') to the oral cavity, to the 

 palatine (j"), and pharyngeal (lo) glands, and to the tonsil {42) and 

 peritonsillar adenoid follicles {12), are shown in Fig. 20. This is a 

 view of the left side of a dissection in which the oral and pharyngeal 

 cavities were distended by a preUminary injection. The parotid 

 duct (5) is shown in its passage through the buccal mucosa, with a 

 small separate gland immediately caudomesal to the duct. This is 

 the first of the above-described orbital series. (Cf. page 7.) 



The ventral view of the same preparation is given in Fig. 21, showing 

 the group of lymphoid follicles at the base of the tongue (77) and the 

 inferior labial glands (g). 



Figure 22 shows both inferior and superior labial glands in an in- 

 stance of unusual development (Negro). 



The inferior group forms a continuous glandular band along the 

 entire transverse width of the lower lip. 



The superior set is divided symmetrically into left and right por- 

 tions, by a gland-free interval descending from the nasal septum. 



PART I 



ANNOTATION OF LEADERS IN ALL FIGURES 



I. Glands. 



/. Main submaxillary gland and duct. 



/'. Secondary submaxillary gland and duct. 



/". Accessory submaxillary glands and ducts. 



2. Greater sublingual gland and duct. 



J. Lesser sublingual glands, 



y. Isthmian or faucial glands, 



j" . Palatine glands. 



4. Weber's gland. 



5. Parotid gland and duct. 



6. Accessory parotid glands. 



7. Orbital glands. 



S. Superior alvcobuccal glands, 

 p. Labial glands. 

 JO. Pharyngeal glands. 



11. Lymphoid tissue at root of tongue. 



12. Peritonsillar lymphoid tissue. 



