OTIC GANGLION. 



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meningeal artery. In this ganglion, as in the others connected with the 

 fifth nerve, filaments from motor, sensory, and sympathetic nerves are 

 blended. Some twigs are furnished by it to muscles. 



Connecting branches roots. The ganglion is joined by a fasciculus from 

 the motor part of the inferior maxillary nerve, and is closely united with 



a. Tensor tympani muscle. 



b. Internal pterygoid muscle with its 



nerve entering it. 



c. External carotid artery with the sym- 



pathetic on it. 



1. Otic ganglion. 



2. Branch of Jacobson's nerve. 



3. Nerve to tensor tympani. 



4. Chorda tympani joining gustatory. 



5. Nerve to pterygoideus internus. 



6. Nerve of tensor palati. 



7. Auriculo-temporal nerve. 



INNER VIEW op THE OTIC GANGLION. 



the branch of that nerve to the internal pterygoid muscle, thus receiving 

 two of its roots, motor and sensory, from the fifth nerve. Its connection 

 with the sympathetic is established by a twig from the plexus on the 

 middle meningeal artery. 1 



Branches to muscles. Two muscles receive their nerves from the otic 

 ganglion, viz., tensor tympani and circumflexus palati. The nerve to the 

 tensor tympani, 3 , is directed backwards, and enters the bony canal con- 

 taining that muscle. The branch for the circumflexus, 6 , arising from the 

 front of the ganglion, may be supposed to be derived from the internal 

 pterygoid nerve. 



The nerve of the internal pterygoid muscle, 5 , arises from the inner side 

 of the inferior maxillary nerve near the skull and penetrates the deep 

 surface of the muscle. This branch is joined by a fasciculus from the 

 motor root of the fifth nerve. 



Directions. The remainder of the pterygo-maxillary region of the left 

 side may be now examined. 



1 Further, the ganglion is said to be connected with the tympanic nerve (of the 

 glosso-pharyngeal) by means of the small superficial petrosal nerve, 2, joining the 

 posterior part. 



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