Archive image from page 536 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 SEROUS AND SYNOVIAL MEMBRANES. 515 brane of little more than their own breadth ; this membrane was prolonged at their oppo- site poles into ribbon-shaped processes, of excessive tenuity and considerable length. Such a description greatly approximates to that given by Mr. Goodsir, of the torn-up ' germinal membrane ' of the serous tissues; but I have not studied these objects sufficiently to be able to affirm or deny the complete ap- plicability of his descri
Archive image from page 536 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 SEROUS AND SYNOVIAL MEMBRANES. 515 brane of little more than their own breadth ; this membrane was prolonged at their oppo- site poles into ribbon-shaped processes, of excessive tenuity and considerable length. Such a description greatly approximates to that given by Mr. Goodsir, of the torn-up ' germinal membrane ' of the serous tissues; but I have not studied these objects sufficiently to be able to affirm or deny the complete ap- plicability of his description to them. In the instance where I saw it, I rather inclined to consider it a distortion and elongation of the ordinary epithelia, due to accidental mecha- nical violence, inflicted during the examination of the specimen. The characters of the cells. — The different individual cells which may be found floating in the field of the microscope exhibit great diversities of appearance, so as to offer almost every gradation of cell-growth. The first form visible (fg. 396. «) is that of a delicate pale, flat, cytoblast, which is either unaffected by the application of acetic acid, or is even rendered somewhat more transparent by it. The next gradation (6) is still a cytoblast, uncomplicated by the addition of an outer cell-wall ; but dilute acetic acid renders it yellowish, and much more distinct. In the next variety (the next stage of development, I think it may safely be termed), two outlines Fig. 396. Epithelium of the Subcutaneous Bursts. {Magnified 320 diameters.} are visible (c), one of the nucleus or cyto- blast, another of a cell-wall exterior to this ; and the distance between the two gradually increases in different individuals by an in- crease in the size of the cell, which, however, retains its flattened oval shape. Its contents are either transparent, or very faintly gra- nular : and the succeeding modification mainly consists in the increased granularity
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