CONNECTIVE TISSUES 



47 



glistening, and transparent. Openings called stomata 

 are said to be present between the cells, but they are 

 supposed to be artefacts according to the latest teach- 

 ing. Serous membranes line joint-cavities, bursse, 

 tendon sheaths, circulatory and lymphatic systems, 

 and the pleural, pericardial, and peritoneal cavities. 



FIG. 23 



FIG. 24 



White fibrous tissue. (Gerrish.) 



Yellow fibrous tissue. 

 (Queckett.) 



Connective Tissues. The connective tissues of the 

 body are the elements entering into the formation 

 of the more permanent structures of the body, such 

 as bones, cartilages, ligaments, those holding fat in 

 position, those used as' coverings for muscles as 

 fascia, as sheaths for bloodvessels, and nerves, as 

 supports for cells of glands and organs, and those 

 binding membranes to underlying organs, as the 

 pleura and peritoneum to the lungs and abdominal 



