SEROUS AND SYNOVIAL MEMBRANES. 



119 



face of the diaphragm, but are present in all serous membranes, and 

 they serve to prevent any undue accumulation of lymph within the 



FIG. 144. ENDOTHELIUM OF THE OMENTUM OF THE RABBIT. NITRATE OF SILVER 

 PREPARATION. (Highly magnified.) 



FIG. 145. SMALL PORTION OF PERITONEAL SURFACE OF DIAPHRAGM OF RABBIT, STAINED 

 WITH NITRATE OF SILVER TO SHOW THE SEROUS EPITHELIUM. (Klein.) 



/, lymph-channel below the surface, lying between tendon bundles, t, t, and over which the 

 surface-cells are seen to be relatively smaller, and to exhibit five stomata, s, s, leading 

 into the lymphatic. The endothelium of the lymphatic channel is not represented. 



serous cavity during health. The pavement-epithelium rests upon a 

 homogeneous basement-membrane, which is especially well marked in 



