324 



PHYSIOLOGY 



CHAP. 



On examining a portion of a fatty lobule with the high power 

 (Fig. 101), the fat globules are seen to be enclosed within round or 



FIG. 100. Small lobule of fat from the subcutaneous tissue of guinea-pig. (Schafer.) Magnified 

 about 20 diameters, a, small artery to lobule ; v, small vein. The capillaries within the 

 lobules are not visible. 



oval bladders of different sizes (80-40 /*) which are the residuum 

 of the original protoplasm of the connective tissue cells, the nuclei 

 of these being still present, though often hard to see, since they are 



FIG. 101. A few cells from the margin of the fat-lobule represented by the preceding figure. 

 (Schafer.) Highly magnified, f.g, fat-globule distending fat-cell ; n, nucleus; m, membranous 

 envelope of fat-cell ; c r, bunch of crystals within a fat-cell ; c, capillary vessel ; v, veiiule ; 

 c.t, connective tissue-cell ; the fibres of the connective tissue are not represented. 



displaced and compressed by the fat-drops which distend the 

 bladder. The fat-cell is thus only a connective tissue corpuscle 

 reduced by the accumulation of fat in its cytoplasm to a vesicle 



