624 



DISSECTION OF THE SUBMAXILLARY EEGION. 



to mucous 

 membrane, 



to the 

 papillae. 



Submaxil- 



lary 



ganglion 



Other filaments are supplied to the mucous membrane of the 

 mouth, the gums, and the sublingual gland. 



Lastly, the branches for the tongue ascend through the muscular 

 substance, and are distributed to the conical and fungiform papillae. 



The SUBMAXILLARY GANGLION (fig. 224, 2 ) resembles the other 

 ganglia connected with the three trunks of the fifth nerve, and 

 communicates with motor, sensory, and sympathetic nerve. It lies 

 on the hyo-glossus muscle immediately above the deep part of the 



FIG. 224. DEEP VIEW OP THE SUBMAXILLARY REGION (ILLUSTRATIONS 

 OF DISSECTIONS). 



Muscles : 



A. Genio-glossus. 



B. Genio hyoid. 

 c. Hyo-glossus. 

 D. Stylo-glossus. 



F. Mylo-hyoid reflected. 



fl. Stylo- hyoid. 



J. Posterior belly of digastric. 



Nerves : 



1. Lingual. 



2. Submaxillary ganglion. 

 4. Glosso-pharyngeal. 



6. Hypoglossal. 



7. Upper laryngeal. The lingual 

 artery is seen dividing, close to the 

 hypoglossal nerve : the ranine ofFsel 

 is marked with 9. 



3. Wharton's duct. 



submaxillary gland, and is attached by two or three filaments to the 



lingual nerve. 



has roots Connection with nerves roots. The fibres of the sensory root are 



n facial derived from the lingual, and of the motor root from the chorda 

 and syiiipa- tympani nerves, both joining the upper part of the ganglion. The 



sympathetic root comes from the plexus on the facial artery, 

 ives Branches. From the lower part of the ganglion five or six small 



offsets descend to the submaxillary gland ; and from the fore part 



other filaments are given to the mucous membrane of the mouth and 



to Wharton's duct. 



