114 



THE FROG 



CHAP. 



composed of a sort of irregular network of delicate bundles 

 of wavy fibres called white connective tissue fibres (Fig. 33, ot), 

 which cross one another in all directions. Amongst them 

 are found single fibres sweeping across the field in bold 



Fig. 33. — Connective^ tissue from between muscles of frog's leg. 

 c. cells ; e, elastic fibres ; w. white fibres :— all of which are imbedded in a delicate 



matrix. 



curves and called elastic fibres {e) : it is owing to their 

 elasticity that the tissue cannot be spread out when wet. 

 Scattered among the fibres are numerous nucleated cells (c) 

 of very varied and irregular form : these are the connective 

 tissue cells. The fibres, as well as the cells, are imbedded 

 in a soft, homogeneous ground-substance or matrix. 



