OF THE LYMPHATIC GANGLIA. 311 



duced into the stomach, without the intermediate lymphatic 

 vessels presenting the smallest evidence of their passage. 



ARTICLE II. 

 OF THE LYMPHATIC GANGL-IA. 



471. The conglobate or ovoid glands, which interrupt the 

 continuity of the lymphatic vessels, stand in the same rela- 

 tion with respect to these vessels, as the nervous ganglia to 

 the nerves. 



The ganglia were very anciently known. It is partly of 

 them that Hippocrates speaks under the name of glands. Fr. 

 Sylvius has given to them the epithet of conglobate* and Los- 

 sius that of lymphatic glands. According to the comparison 

 above mentioned and made by Soemmering, and to avoid con- 

 fusion, M. Chaussier has designated them under the name of 

 lymphatic ganglions. 



472. They are situated in the course of all the lymphatic 

 vessels, beginning at the instep and at the fold of the arm, at 

 the elbow for the members, at the carotid canal and at the ex- 

 terior base of the cranium for the head. Many of them exist 

 in the neck, in the arm-pit, in the groin, several in the ante- 

 rior parietes of the thorax and abdomen, and a very great 

 number in these cavities. They exist especially very abun- 

 dantly about the roots of the lungs and in the mesentery, near 

 parts, consequently, which admit much extraneous matter. 

 None are known to exist in the cranium or in the spine. 



Their size varies, in the healthy state, from that of a lentil 

 to that of an almond. Generally, the smallest are situated 

 towards the origin of the vessels, and the largest towards their 

 trunks. The most voluminous and closest to each other are 

 formed towards the root of the mesentery, the smallest in the 

 epiploon; those of the head and arms are small. 



Their figure is rounded, oblong and a little flattened; they 

 are more or less unequal at the surface; they generally have 

 the form of an almond. 

 41 



