THE CRANIAL NEK VMS. 



505 



§ 1374. TABLE OP THE SYNONYMS OF THE CRANIAL NERVES. 



SOmmermg, 



Teclinical names herein adopted. 



Synonyms. 



wmis. 



I... 

 II.. 

 III. 

 IV . 



v.. 



VI.. 



VII. 



VIII 



IX... 



X... 



XI.. 



XII. 



Olf actorii 



Opticus 



Oculomotorius 



Trochlearis 



Trigeminus , 



Abducens 



Facialis 



Auditorius 



Glossopharyugeus. , 



Vagus 



Accessorius 



Hypoglossus 



Khinencephalici. , 



Motor oculi communis.. 



Patheticus 



Trifacialis , 



Portio dura 



Portio mollis, Acusticus. 



Par vagum, pneumogastricus . 

 Accessorius spinalis 



I. 



II. 



lU. 



IV. 



V. 



VI. 



VII. 



VIII. 

 IX. 



§,1375. Designation of the Cranial Nerves by Numbers.— 



Among the older anatomists (as may be seen from Vicq d'Azyr, A, 

 "Explication," 48-50), the cranial nerves were variously enume- 

 rated. At the present day only two methods are commonly em- 

 ployed, those of Sommering and Willis. As indicated upon the 

 accompanying Table, the difference between these two concerns only 

 half of the twelve. The 7th and 8th of Sommering constitute the 

 Portio dura and the Portio mollis of Willis's 7th ; the 9th, 10th 

 and 11th of Sommering are included in the 8th of Willis, and the 

 12th of the former represents the 9th of the latter. 



Fortunately, the nerve most often concerned in medicine and 

 surgery is the 5th, the seat of toothache and most other forms of 

 facial neuralgia. Upon the whole, it would be better to abandon 

 the use of the numbers altogether and employ only the technical 

 names here given, with, perhaps, the substitution of the shorter 

 word acusticus for auditorius. Nevertheless, in the Descriptions 

 (§§ 1380-1391) and in the Table (p. 520), the numerical order is fol- 

 lowed for convenience of reference. 



§ 1376. Arrangement of the Crsinial Nerves. — These nerves 

 have been variously classified in accordance with physiological or 

 morphological facts and theories. 



The following Table exhibits the provisional physiological 

 arrangement which was outlined by Wyman (34, 40) and has been 

 elaborated by Dalton (A, 447). 



