582 A. FLIMT. — - CONSIDÉRATIONS HISTORIQUES 



Mémoire original. Réimpression. 



De ces faits nous avons le droit de 

 conclure que la portion dure de la 

 septième paire est le nerf respiratoire 

 de la face, que les mouvements des 

 lèvres, des narines et du voile du 

 palais sont soumis à son influence 

 quand les muscles de ces organes 



» confmed for a few seconds, so as to 

 » make it pant and forcibly dilate the 

 » nostrils at each inspiration, the portio 

 » dura was divided on one side of the 

 » head ; the motion of the nostril of the 

 » same side instantly ceased, while the 

 » other nostril continued to expand and 

 » contract in unison with the motions 

 n of the chest. » 



On division of this nerve, the animal 

 will give no sign of pain ; or in no degree 

 equal to what results from dividing the 

 fifth nerve. 



« An ass being tied and Ihrown, and 

 » the superior maxillary branch of the 

 » fifth nerve exposed, touching this nerve 

 » gave acute pain. Itwas divided, but no 

 » change took place in the motion of the 

 » no-tril ; the cartilages continued to 

 » expand regularly in time with the other 

 » parts which combine in the act of res- 

 » piration. » If the same branch of the 

 fifth be divided on the opposite side, and 

 the animal let loose, « he will not pick 

 » up hiscorn : the power of elevating and 

 » projecling the lip, as in galheiing food, 

 » was lost. » He will press the mouth 

 against the ground, and at length will lick 

 the oats from the ground with his tongue 

 In my first experiments, « the loss of 

 » motion of the lips was so obvious, » 

 that it was thought a useless cruelty to 

 eut the other branches of the fifth 

 (p. 412-413). 



De ces faits nous avons le droit de 

 conclure que la portion dure de la 

 septième paire « est le nerf moteur 

 » des muscles du front, des sourcils, 

 » des paupières, des narines, des lè- 

 » vres et des oreilles, c'est-à-dire de 

 » tous les muscles delà face, sauf ceux 

 » de la mastication »; — qu'il est le 

 nerf respiratoire de la face , que les 

 mouvements des lèvres, des narines et 

 du voile du palais sont soumis à son 



» dura be eut across where it émerges 

 » uDon the face, before the ear, ail the 

 » muscles of the face, except those of the 

 » jaws, will be paralyzed. If its nostrils 

 » be confined for a few seconds, so as to 

 » make it pant ant forcibly dilate the nos- 

 trils at each inspiration, and if the portio 

 » dura be now divided on one side of the 

 » head, the motion of the nostril of the 

 » same side will instantly cease, while 

 » the other nostril will continue to ex- 

 » pand and contract in unison with the 

 » motions of the chest. » 



On division of this nerve, the animal 

 will give no sign of pain ; or in no degree 

 equal to what results from dividing the 

 fifth nerve. 



« If an ass be tied and thrown, and 

 » the superior maxillary branch of the 

 » fifth nerve exposed. louching this nerve 

 » gives acute pain. When it is divided, no 

 » change takes place in the motion of 

 » the nostril; the cartilages continue to 

 » expand regularly in time with the other 

 » parts which combine in the act of res- 

 » piration ; but the sensibility is entirely 

 » lost. » If the same branch of the fifth 

 be divided on the opposite side, and the 

 animal let loose, « the parts will be de- 

 » prived of sensibility, and he will not 

 » pick up his corn : the power of elevating 

 » and projecting the lip, as in gathering 

 » food, will appear to be lost. » He will 

 press the mouth against the ground, and 

 at length lick the oats from the ground 

 with his tongue. In my first experiments, 

 « the loss of sensibility of the lips was so 

 » obvious, » that it was thought a useless 

 cruelty to eut the other branches of the 

 fifth (p. 52). 



