UTERUS AND VAGINA. 139 



sinuous line formed by sectioning the papillary mucosa. (c) That 

 the cells are more or less flattened, (d) That their edges, excepting 

 those of the surface, are serrated. (The union is by a cement be- 

 tween the interdigitating cell bodies.) (e) The change in form as 

 the surface is approached. (/) The surface cells. (These are 

 very much flattened, and so fused as to resemble, in longitudinal sec- 

 tion, fibres.) (g) Detached surface cells. (At H, Fig. 94, these 

 are shown in plan, having been torn off; those intact are, of course, 

 seen in profile. Fig. 97 represents the same elements as they gener- 



FIG. 94. VERTICAL SECTION OF THE VAGINAL LINING AT PUBERTY. Stained with Haema. and 



Eosin. x 400. 



A. Sub-epithelial capillary plexus. 



B. Papillary arrangement of the mucosa. 



C. Large blood-vessels in the submucosa. 



D. Muscular wall of vagina. 



E. Deep cells of the lining epithelium. 



F. Middle strata of lining stellate cells. 

 Gr. Surface cells in profile. 



H. Surface cells in plan detached. 



ally appear in a film of urine.) (h) The nuclei, evenly granular, 

 usually larger than a red blood-corpuscle, (i) Vacuolated cells. 



10. The subepithelial vaginal structures, (a) The large and 

 abundant capillaries of the mucosa. (b) The submucosa, not 



