553 
ON THE NERVES AND BLOODVESSELS OF THE 
STOMACHS OF RUMINANTS. 
Bi/ Professor Gv.Lhtf of the Royal Veterinary School of Toulouse. 
Veterinary surgeons have long regarded the stomachs of 
the ox, and particularly the rumen, the reticulum, and the mani- 
plus, as provided with few nerves and bloodvessels, and as con¬ 
sequently endowed with a very slight degree of sensibility, and 
little susceptible of presenting the phenomena which character¬ 
ize inflammation. Some pathological facts, however, have 
proved to me the inaccuracy of this opinion. Other veterinary 
surgeons have thought with me ; and inflammation of any or all 
of the three first stomachs of the ox must be now acknowledged 
occasionally to occur, as well as that of the abomasum. 
When I was appointed professor at this school, I endeavoured 
to obtain some definite opinion on this important subject; and in 
studying with care the neurology and angiology of these viscera, 
assisted by some of my pupils, I have ascertained that the ceso- 
phagean nervous cords having reached the paunch, furnish it 
with a multitude of branches. 
While M. Lafore occupied alone the chair of anatomy, I could 
not, with all the devotion I wished, pursue those researches, the 
importance of w'hich deeply impressed my mind ; but when jointly 
with him I filled that chair, there was no longer any obstacle to 
the full accomplishment of my wishes; and that which I am 
now about to describe was the product of our joint labours. I 
owe much to his anatomical knowledge, to his assiduity, and to 
the peculiar address with which he used the scalpel. 
I will at present confine myself to a simple description of that 
which presented itself to us; but in another and more laboured 
work, 1 will state the physiological and pathological considera¬ 
tions which these anatomical facts presented. 
The nerves which supply the stomachs of the ox and other 
ruminants are furnished by the pneumogastric (the organic motor 
nerve of Youatt) and the trisplanchnic (the sympathetic nerve, or 
the secretoryy nutrient nerve of Youatt). 1 shall at present at¬ 
tempt a succinct description of the first, and speak only of the 
second so far as it has relation to the functions of the digestive 
organs. 
The pneumogastric nerve, or par vagum, the tenth pair of 
cerebral nerves—the eighth according to the human anatomist 
(the tenth of Youatt), takes its origin in the ox, as in the horse, 
from the lateral and central parts of the rachidian bulb (the cor- 
