A treatise on Bright's disease and diabetes, with especial reference to pathology and therapeuticsIncluding a section on retinitis in Bright's disease . out .06 mm. {-x^-q inch), and in the newborn child, mm. (yg^o inch). The third change is found in the nar-rowing as the tubule becomes the descending limb of the loopof Henle. The fourth is the slight dilatation just before orafter the loop is formed. Fifth, a slight temporary narrowingat the spiral part of the ascending limb. Sixth, a furthernarrowing as the ascending limb re-enters the cortex. Seventh,the numerous changes in the ir
A treatise on Bright's disease and diabetes, with especial reference to pathology and therapeuticsIncluding a section on retinitis in Bright's disease . out .06 mm. {-x^-q inch), and in the newborn child, mm. (yg^o inch). The third change is found in the nar-rowing as the tubule becomes the descending limb of the loopof Henle. The fourth is the slight dilatation just before orafter the loop is formed. Fifth, a slight temporary narrowingat the spiral part of the ascending limb. Sixth, a furthernarrowing as the ascending limb re-enters the cortex. Seventh,the numerous changes in the irregular tubule (10). Eighth,the widening of the intermediary portion, of which the diame- STRUCTURE OF TUE KIDNEY. 23 ter about equals that of the convoluted tubule. And, ninth, aconstriction as the latter terminates in the collecting-tube. After the collecting-tube is formed it receives, just below itssummit, a few additional canals, and then passes singly downto the papillary part of the medulla. Its diameter in the med-ullary ray is between .04 mm. (g.^g inch) and .08 mm. (gfoinch) in the adult, and in the child .008 (3 = inch) and .05 Diagrammatic exposition of the method in which the uriniferous tubes unite to formprimitive cones.—After Ludwig. (5 oT inch), the narrowest canals being in the centre of the reached the papillary portion, the collecting-tubes uniteby twos; first those of a single medullary ray, forming theprincipal or excreting tubes; then these unite with other excret-ing-tubes to form the papillary ducts, of which fifteen to twentyopen on the surface of each papilla into the pelvis of the George H. Rose, in an able graduation thesis On theAnangement of the Uiiniferous Tubules, presented to theMedical Faculty of the University of Pennsylvania, in March,1879, concluded, first, that not all of the tubuli uriniferi go toform loops of Henle; second, that the medullary rays are 24 brights disease. made up of the convoluted tubes wh
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