XII CONNECTIVE TISSUE 557 



network by virtue of their power of amoeboid movement 

 (Lesson III.). Such cells are spoken of as wandering or 

 migratory cells. 



Such are the characters of that which may be regarded 

 as a typical specimen of connective tissue. But in 

 different parts of the body this tissue presents great 

 differences, all of which, however, are dependent upon the 

 different relative extent to which the various elements of 

 the tissue are developed. 



Thus, (a) The intercellular substance may be very much 

 reduced in amount in proportion to the cells, as is the 



Fig. 183.— Two Connective Tissue Corpuscles. 



Each is seen to consist of a protoplasmic branched body, containing a 

 nucleus. Very highly magnified. 



case in the superficial layer of the dermis and some other 

 places. 



(6) The intercellular substance may be abundant, and 

 the collagenous elements, with fibrils strongly marked and 

 arranged in close-set parallel bundles, leaving mere clefts 

 in the place of the wide meshes of ordinary connective 

 tissue. This structure is seen in tendons and most 

 ligaments. 



(c) The elastic element may predominate as in certain 

 (few) ligaments and the vocal cords. 



(d) The fibrous or elastic elements may abound, but a 

 greater or less amount of chondrigenous substance is 

 developed around the corpuscles. These are respectively 

 the fibro-cartilages and elastic cartilages, which we 



