334 



THE LIYEE 



liver. Naked fibrils from these trunks also enter the lobules and 

 form a plexus among the hepatic cells (Korolkow*) in relation 

 with which they form fine terminal brushes and varicose end 

 knobs (Berkley!). 



THE GALL BLADDEK 



The wall of the gall bladder consists of three coats : 1, mucous ; 

 2, muscular ; 3, fibro-serous. The mucous membrane is markedly 

 folded or corrugated, the irregularly polygonal depressions being 

 relatively broad at the fundus but becoming narrower toward the 

 neck of the organ. The lining epithelium is of the tall columnar 

 variety, with spheroidal or ovoid nuclei which lie near the base of 

 b 



FIG. 277. FROM A SECTION THROUGH THE WALL OF A DOG'S GALL BLADDER. 

 a, epithelium ; i, lymphatic nodule ; 0, serous coat, x 80. (After Sudler.) 



the cell. The free extremity of the epithelial ce]ls presents an 

 indistinct cuticular border. The epithelium follows all the folds 

 of the mucosa and lines the intervening depressions. 



The corium of the mucosa consists of delicate connective tissue 

 and contains a few smooth muscle fibres derived from the mus- 

 cular coat. It is connected with the muscularis by a thin layer 

 of denser connective tissue which contains blood and lymphatic 

 vessels and which simulates a submucosa. 



The gall bladder possesses a distinct muscular wall, consisting 

 of numerous interlacing smooth muscle bundles the most of which 



*Anat. Anz., 1893. 



f Johns Hop. Hosp. Rep., 1895. 



