. Anatomy, descriptive and surgical. he individual endothelial cells)with the interstitial cement substance of the columnar cells of the surface of the vil-lus. Thus we are enabled to trace a direct continuity between the interior of thelacteal and the surface of the villus by means of the reticular tissue; and it is alongthis path that, according to Dr. Watney, the chyle passes in the process of absorp-tion by the villi. That is to say, it passes through the interstitial substance betweenthe epithelium cells, through the interstitial substance of the basement membrane, thereticulum of the mat


. Anatomy, descriptive and surgical. he individual endothelial cells)with the interstitial cement substance of the columnar cells of the surface of the vil-lus. Thus we are enabled to trace a direct continuity between the interior of thelacteal and the surface of the villus by means of the reticular tissue; and it is alongthis path that, according to Dr. Watney, the chyle passes in the process of absorp-tion by the villi. That is to say, it passes through the interstitial substance betweenthe epithelium cells, through the interstitial substance of the basement membrane, thereticulum of the matrix and the interstitial substance between the endothelial platesof the lacteal,—all which structures have been shown to be continuous with oneanother, and, being probably semifluid, do not offer any obstacle to the passage ofthe molecular basis of the chyle. All these points are illustrated by the accompanying diagram by Dr. Watney(Fig. 577), for which I have to express my best thanks to him; and a compari- Fig. 578. ji^LJ&st. Fig. 579. Two Villi (magnified).


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