. The anatomical record. Anatomy; Anatomy. 470 PAIL S. McKIBBEN In tigure 1, a (Irawiiij:; iiuulo from a whole inouiit of the dura mater of Xectm'us, the form, frecjuency and extent of the mast cells are shown. Their similarity to certain sympathetic nerve cells, in shai)e, size and extent, might lead one into serious error. That those are not nerve cells has been demonstrated thus: first,. Fig. 1 Drawing, made witli camera lucida, of the dura mater taken from the roof of the cranial cavity of Xccturus; a whole mount of the dura mater fixed in formaline-Zenker's fluid and stained with Wright's
. The anatomical record. Anatomy; Anatomy. 470 PAIL S. McKIBBEN In tigure 1, a (Irawiiij:; iiuulo from a whole inouiit of the dura mater of Xectm'us, the form, frecjuency and extent of the mast cells are shown. Their similarity to certain sympathetic nerve cells, in shai)e, size and extent, might lead one into serious error. That those are not nerve cells has been demonstrated thus: first,. Fig. 1 Drawing, made witli camera lucida, of the dura mater taken from the roof of the cranial cavity of Xccturus; a whole mount of the dura mater fixed in formaline-Zenker's fluid and stained with Wright's stain. The blood capillaries are indicated by the dotted lines. X 70. the cytoplasmic granules have a different form and arrangement from that exhibited by the Nissl granules of nerve cells; second, they will stain intra-vitam with methylene blue and when so stained show the cliaracteristic metachromatic tint; third, when treated with sulphuric acid and aqueous hematoxylin these gran- ules fail to show the presence of iron wliioh is characteristic of the Nissl granules of nerve cells. In these tests for iron, control. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
