. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 350 which have no imbrication show it after maceration in distilled water. This is evidently the result of mechanical forces. The fluid increasing by osmosis causes pressure within the lumen against the cells. Under pressure the fluid takes the direction of least resistance causing a current in the direction toward which the cells are inclined. Bowman's capsule is quite distended with fluid and vesicles. The epithelium of the adjoining convoluted tubule is inclined toward the capsule. Tubular epithelium is at times seen pushe
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 350 which have no imbrication show it after maceration in distilled water. This is evidently the result of mechanical forces. The fluid increasing by osmosis causes pressure within the lumen against the cells. Under pressure the fluid takes the direction of least resistance causing a current in the direction toward which the cells are inclined. Bowman's capsule is quite distended with fluid and vesicles. The epithelium of the adjoining convoluted tubule is inclined toward the capsule. Tubular epithelium is at times seen pushed within the capsular space. From this evidence we conclude that there is a current from the convoluted tubule into the capsule which causes the imbrication in the tubule near its junction with the capsule. Brush-Border. A normal kidney which shows no brush-border may be made to show it by maceration in a hypertonic salt solution. The distilled water specimens show no suggestion of brush-border, but all the salt solutions from 0,9^'o to saturated solution bring it out in varying degrees. The most favorable strength for its production is a 5/o solution. In the 0,9% solution it is poorly developed and takes several hours to appear. The stronger concentrations produce fair brush- borders but not as high nor as clear as the 5% solution. The most marked brush-borders are in the tubules lying near the medulla and in the angle between two pyramids of Feurein. Here they may be seen to consist of unquestionably definite, outstanding, independent prolongations of the cell protoplasm. They are not supported by each other nor by any substance between them. In the rest of the cortex the picture is not so clear. Here it usually appears as a striated border. The dark striations are generallv connected at their ends. 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 n
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