. The diagnosis and treatment of diseases of women. 41,and after the menopause inFig. 542. The basis of the endo-metrium is a tissue com-posed almost exclusively ofoval cells, somewhat largerthan a leucocyte and hav-ing a round or oval nucleusthat stains lightly (). The nucleous is solarge that it occupies mostof the cell (Fig. 543). Whenstained it is reticular, i. e.,it shows the chromatinbands and does not stain a solid dark color as does the nucleus of a lymphocyte. These oval cells with thelarge reticular nucleus are known as stroma cells. They are packed closely to-gether, with not
. The diagnosis and treatment of diseases of women. 41,and after the menopause inFig. 542. The basis of the endo-metrium is a tissue com-posed almost exclusively ofoval cells, somewhat largerthan a leucocyte and hav-ing a round or oval nucleusthat stains lightly (). The nucleous is solarge that it occupies mostof the cell (Fig. 543). Whenstained it is reticular, i. e.,it shows the chromatinbands and does not stain a solid dark color as does the nucleus of a lymphocyte. These oval cells with thelarge reticular nucleus are known as stroma cells. They are packed closely to-gether, with nothing separating them except a few cell processes and a smallamount of serous or mucoid inter-cellular substance. The tissue thus formed isknown as cytogenic tissue. When a specimen of it is stained, the microscopic fieldseems to be almost entirely occupied by rounded or oval reticular nuclei (Fig. 543).The cell-protoplasm stains so lightly and is so small in amount that it isscarcely noticeable. The stroma cells may vary slightly in size and shape. Fig. 543. A Microscopic Section of the Endometrium, show-ing the Stroma Cells and also a cross-section of a structures are magnified 420 times. (Williams— Obsteirics.) 528 DISEASES OF THE UTERUS but any general change to a marked degree in size or shape, means some are normally no connective tissue fibers or muscle fibers or vessels with well-marked walls, in the cytogenic tissue near the free surface of the mucosa, thoughall these may appear in certain abnormal conditions. The free surface of the endometrium is covered with a layer of ciliated columnarepithelial cells (Fig. 540). These have a large reticular nucleus, situated near thecenter of the cell but a little closer to the attached end than to the free end. Thecilia are not seen in the ordinary preparation but come out well in Fig. 543. The endometrium contains many glands. These are simply tubular depressionsof the lining epithelial layer (Fig. 541).
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