314 PRACTICAL ANATOMY. 



The gustatory is distributed to the mucous membrane 

 of tongue, and is a nerve of special sense and common 

 sensation. It is joined by the chorda tympani, from 

 which it receives its properties as a nerve of taste. It 

 passes deeply to the floor of the mouth, where it is sub- 

 mucous and is distributed to the mucous membrane of 

 the anterior part of the tongue. 



The Submaxillary Ganglion. The submaxillary 

 ganglion is situated above the submaxillary gland, and 

 is connected with the gustatory, from which it receives 

 its sensory root. Its motor root comes from the facial, 

 through the chorda tympani. Its sympathetic root is 

 derived from the plexus around the facial artery. It is 

 about the size of a hemp-seed, and distributes its branches 

 to the surrounding structures. 



The Otic Ganglion. A small split-pea-shaped gan- 

 glion, placed just below the foramen ovale. It receives 

 its sensory and motor roots from the inferior maxillary, 

 its sympathetic root from the carotid plexus. Its branches 

 run to adjoining structures ; one animates the tensor 

 tympani muscle; others are distributed to the muscles 

 of the soft palate. 



6. ABDUCENS. Supplies the external rectus. It 

 arises in the groove between the anterior pyramid and 

 olivary body, just below the pons. It runs along the 

 side of the body of the sphenoid, leaves the cranium by 

 the anterior lacerated foramen, lying on its lower 

 boundary, and is distributed to the external rectus. 



7. FACIAL. The nerve of motion to most of the 

 muscles of the face. It arises posterior to the olivary 

 body, in the groove between it and the restiform body. 

 It passes forward and outward and enters the internal 

 auditory meatus, in common with the eightli nerve, 

 lying upon it. It enters the aqueduct of Fallopius, 



