chap, v.] FIBROUS CONNECTIVE TISSUES. 



35 



substance cementing the bundles and trabeculae together 

 (von Recklinghausen). In the cornea and serous mem- 

 branes these spaces 

 possess the shape 

 of branched lacu- 

 nae, each lacuna 

 being the home 

 of the body of 

 the cell, while the 

 branches or cana- 

 liculi contain its 

 processes. These 

 canaliculi form the 

 channels by which 

 neighbouring lacu- 

 nae anastomose 

 with one another 

 (Fig. 26). The cell 

 and its processes do 

 not fill up the la- 

 cuna and its canali- 

 culi. In loose connective tissue the lacuna may be of 

 considerable size, and may contain several connective 



cells, which make as it 

 were a lining for it. 

 These in some places are 

 very little branched, and 

 almost form a continuous 

 endotheloid membrane of 

 flattened cells. Such is 

 Fig. 24.-From the Tail of a tne subepithelial endothe- 



Tadpole. 



Fip. 23s. From a Transverse Section through 

 the Tendons of the Tail of a Mouse, stained 

 with gold chloride. 



Several fine tendons are shown here. The dark 

 branched corpuscles correspond to albuminous 

 cement substance stained with gold chloride: 

 they are the channels between the bundles of 

 fibrous tissue, constituting the tendon, and seen 

 here as the clear spaces in cross section. In each 

 of these channels is a row of tendon cells not 

 discernible here, the long axis of these rows 

 being parallel with the long axis of the tendon. 

 (Handbook.) 



c, Branched connective tissue cells: m, 

 a migratory cell. (Atlas.) 



Hum of Debove, occur- 

 ring underneath the epi- 

 thelium on the surface 



of the mucous membrane of the bronchi, bladder, 



and intestines. 



40. (c) In the true skin and mucous membranes 



