CONNECTIVE TISSUES 



35 



cells occur in great abundance in the stroraa of the ovary and the 

 mucosa of the uterus and oviduct. 



In the mature tissue of the adult many of the cells become 

 more or less flattened, and are often closely applied to, or even 

 wrapped around, the fibre bundles. These lamellar cells have a 

 small nucleus, a considerable rim of cytoplasm, which frequently 

 has a shrunken appearance, 

 and sometimes a few short 

 cytoplasmic processes. The 

 branching stellate forms, how- 

 ever, are characteristic of the 

 younger connective tissues. 



In certain locations a de- 

 posit of pigment granules oc- 

 curs within the connective tis- 

 sue cells. Such pigment cells 

 are usually found where pro- 

 tection from light seems de- 

 sirable, and are most abundant 

 in the choroid coat and iris of 

 the eye. The pigment gran- 

 ules are entirely confined to 

 the cytoplasm of the cell ; the 

 nucleus is never invaded by the 

 deposit. 



The cytoplasm of certain connective tissue cells contains coarse 

 basophile granules, which stain with dahlia and similar basic dyes. 

 This type is known as granule cells, or Mast cells 

 (Mastzellen of the German authors). The gran- 

 ules of other granule cells are readily stained 

 with acid dyes, such as eosin (eosinopMle or acido- 

 phile granule cells). According to the observa- 

 tions of H. B. Shaw,* certain of the granule cells 

 abound in those locations where fat is deposited, 

 and have a special relation to the development 

 of ihefat cells of adipose tissue. 



All the forms of connective tissue cells so far 

 enumerated have their origin within the tissue 

 area in which they lie, hence they are termed 



FlG. 37. PlGMENTED CELLS FROM THE CHO- 



BOID COAT OF THE ox's EYE. (Unstained ; 

 hence, only the pigment granules appear 

 in the figure. ) 



1, granules contained within the cyto- 

 plasm ; I?, free granules which have escaped 

 from cells injured during the process of 

 teasing ; S, the non-pigmented nuclei. 



FIG. 38. GRANULE 

 CELLS FROM THE 

 FIBROUS CONNEC- 

 TIVE TISSUE OF 

 THE HUMAN MAM- 

 MARY GLAND. 



A, a basophile cell ; 

 B, an eosinophile 

 cell. Hematein and 

 eosin. x Y50. 



* J. Anat. and Physiol., 1901. 



