142 



PRACTICAL MICROSCOPY. 



2. The thin mucosa and its small capillary supply. 



3. The dense muscular portion, not arranged in bundles. 



4. The epithelium, (a) The magnitude of the cells. (Z>) The 

 broad based cells without any special basement membrane. 



FIG. 96. VERTICAL SECTION OF THE LINING PORTION OP THE BLADDER (MALE) BEHIND THE 



TRIGONE. 

 Stained with Hsema. and Eosin. X 400. 



A. Connective tissue of subepithehal region, containing large amount of muscular fibre. 



B. Scant capillary supply of subepithelial region. 



C. Muscular wall of bladder. 



D. Large basement cells of the epithelial lining. 



E. Middle region of lining. 



F. Detached surface cells showing processes beneath. 



G. Thin surface cells in profile. 



H. Squamous surface cells, seen detached, in plan. 

 I. Vacuolated cells. 



(c) The three regions, viz., basal, middle, and superficial. (<$) 

 The form of the middle cells; not unlike in outline, though larger, 

 those of the corresponding region in the ureter. (This is best shown 

 in Fig. 97.) (e) The large, scaly, and often fused surface epithe- 



