CONNECTIVE TISSUE CARTILAGE BONE 



supported by fibrous bands and septa and are abundantly supplied with 

 small blood-vessels. 



The fat cells arise from the connective tissue cells by a deposit 

 of fat droplets within the cytoplasm of the latter. These droplets 

 continue to increase in number and fuse with each other to form globules 



ct.c 



st.c 



ct.c. 



f.c. 



f.c. 



FIG. 73. PORTION OF A FAT LOBULE FROM THE AREOLAR CONNECTIVE TISSUE SUR- 

 ROUNDING THE ESOPHAGUS OF A CAT. 



cap., capillary; ct. c., nucleus of a connective tissue cell; /. c., fat cell showing 

 nucleus; tr., trabecula of fibre-elastic connective tissue. X 500. 



of increasing size, until the cytoplasm finally becomes so excavated as to 

 form a mere limiting membrane or cell wall (Fig. 74). The nucleus is 

 pushed to one side in this process and is flattened against the cell mem- 

 brane ; it is usually embedded in a remnant of granular cytoplasm. Be- 

 ing thus distended with fluid fat,, the cell acquires a spheroidal shape. 

 The routine specific stains for fat are osmic acid, which colors the 



