GANGLIA OF THE HEAD. 



61T 



"by a long fil- 

 ament going 

 backward to 

 the cavern- 

 ous sinus. 



The spTie- 

 no-palatine, 

 or ganglion of 

 Meckely is sit- 

 uated in the 

 spheno-max- 

 illary fossa, 

 in a quanti- 

 ty of fat sur- 

 rounded by 



branches of the internal maxillary artery, and presents 

 a reddish triangular appearance. It gives off three sets of 

 branches internal or nasal, descending or palatine, and pos- 

 terior or Vidian all of which have been described with the 

 superior maxillary nerve, under the head of active organs 

 of mastication. This ganglion of Meckel, by means of its 

 Vidian nerve, which takes a most circuitous and lengthy 

 route, as already described, establishes a communication 

 with the carotid plexus, and through this latter with the 

 superior cervical ganglion with the glosso-pharyngeal and 

 pneumogastric, by its tympanic branch, with the facial, 

 superior, and inferior maxillary nerves, and with the sub- 

 maxillary ganglion. 



The sub-maxillary ganglion is in contact with the sub- 



Fio. 156 represents the Cranial Ganglia of the Sympathetic Nerve, o Gan- 

 glion of Ribes. 6 Filament connecting with the carotid plexus c. d Lenticu- 

 lar ganglion e Third nerve getting a filament from the ganglion. / Nasal 

 nerve also getting a filament from the ganglion, g A sympathetic filament 

 going to carotid plexus, h Sixth nerve in cavernous sinus, getting two fila- 

 ments from carotid plexus i Spheno-palatine or Meckel's ganglion, j 

 Branches connecting with superior maxillary nerve, fc Palatine or descend- 

 ing branches. I Spheno palatine or nasal branches, m Naso palatine, a 

 branch of the latter, n Vidian or pterygoid nerve, o Its carotid branch, 

 p Petrosal branch, q Facial nerve, r Chorda-tympani. s Gustatory nerve. 

 I Submaxillary ganglion, u Superior cervical ganglion of the sympathetic. 



