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THE INTERNAL ENVIRONMENT OF THE BODY 



Part III 













Fig. 7.8. Hyaline cartilage from the head of the thigh bone (femur) of a puppy. 

 The cells (chondrocytes) secrete the glassy substance surrounding them and from 

 which they have shrunken away. Nourishment filters through the cartilage to the 

 cells. (Courtesy, Nonidez and Windle: Textbook of Histology, ed. 2. New York, 

 McGraw-Hill Book Co., Inc., 1953.) 



Fig. 7.9. Yellow elastic cartilage from a pig's ear; groups of hyaline cartilage 

 cells are isolated by the hyaline substance which holds a meshwork of the elastic 

 fibers of connective tissue. The springback of the human ear when pulled is due 

 to these fibers. (Courtesy, Nonidez and Windle: Textbook of Histology, ed. 2. 

 New York, McGraw-Hill Book Co., Inc., 1953.) 



