306 HUMAX PHYSIOLOGY 



in the diet. So an animal eating a vegetable oil d 

 not store the same oil in its adipose tissue, but accumu- 

 lates there a fat which conforms to its own standard. 

 The only exception is noted when a fast is followed by 

 abondant feeding: at such a time there may be some 

 retention, for a while, of a distinctly foreign fat. 



Most of the fat in the body is in what we have called 

 adipose tissue. When we spoke of peptic digestion we 

 described this as a tissue rich in fat but not composed 

 solely of that material. It is a form of connective tissue 

 with fibers between the ceBs. But whfle, as a rule, the 

 intercellular substance makes up the bulk of any 





nective tissue we recognize an exception in this ease. 

 The fat carried is imtnicdhdar, that is to say, enclosed in 

 the eefls inrrtcad of being placed between them.. It is so 

 abundant that the cells have a swollen appearance, their 

 are poshed to the surface, and their true proto- 

 f or the fat drops within. 



in lean *nim*lg to an 



- ! ! i lll A II ! ll lljll Jl.l^^- 'I M 



noc usually suspected. A COUBKKTSUJK mass m 



present below the diaphragm and aboi. 

 kidneys. The white marrow in the hollow shafts 



When the 



