OH. IV.] 



AREOLAR TISSUE. 



43 



called lymph. The Soft Kanalchen enable the lymph to penetrate 

 to every part of the areolar tissue. 



Development of Areolar Tissue. 



The mesoblastic cells in those parts where the tissue is to be 

 formed become branched and fusiform. 



Fig. 57. Portion of snbmucous tissue of gravid uterus of sow. a, branched cells, more or 

 less spindle-shaped ; b, bundles of connective tissue. (Klein.) 



These ultimately become the connective-tissue corpuscles, 

 and they get more and more widely separated by intercellular 



Fig. 58. Jelly of Wharton. r, ramified cells intercommunicating by their branches. I, a 

 row of lymph-cells. /, fibres developing in the ground substance. (Ranrier.) 



material, partly shed out by the cells themselves, partly shed out 

 from the neighbouring blood-vessels. This becomes the ground 

 substance. The fibres form subsequently in this as crystals may 

 be deposited by a liquid. At one time it was believed that the 

 cells themselves became elongated and converted into fibres. No 



