DIGESTIVE TRACT OF THE CAT. 



31 



face by the latter lobe. The dorsal surface of the right 

 lateral lobe is consequently in relation with the right central 

 lobe, and with the dorsal abdominal wall. Its ventral sur- 

 face is apt to be hidden to a variable extent by the caudate 

 lobe, with the exception of a small area which is in relation 

 with the cephalic extremity of the kidney. 



The caudate lobe usually presents three surfaces: A 

 ventral surface upon which rests from one quarter to one third 

 of the second portion of the duodenum and its mesentery; a 



T. C. 



Fig, 18. 



The caudal surface of the liver of an adult cat. (Natural size.) r. c, right 

 central lobe. g. gall bladder, d., duodenal groove, c, caudate lobe. ^^, 

 kidney impression, r. L, right lateral lobe. I. L, left lateral lobe. /., fundus 

 of stomach, x., apex of Spigelian lobe, v., portal vein. v. a., in relation 

 with vertical arm of the lesser curvature of stomach, s., Spigelian lobe, p., 

 in relation with the pylorus. 



caudal surface, which covers the cephalic extremity and a 

 part of the ventral surface of the kidney, and a dorsal sur- 

 face, which is in relation with the right lateral, and often 

 with the right central lobe as well. 



Lastly, the Spigelian lobe remains to be described. This 

 lobe seems especially liable to variations in form, but is fairly 

 constant in size. It is most frequently pyramidal in shape. 

 Its base is attached to the junction of the right central and 

 caudate lobes, while the rest of the lobe is free, and extends 



