The laws and mechanics of circulation, with the principle involved in animal movement . mids to bringabout this result, each one containing from two to five hundredtubes, which open upon the apices (4) of the pyramids (fromeight to fifteen in number), that project into the calices andpelvis of the kidney. Now, then, the effect of this arrangement is, when the lumenof the renal artery is enlarged for increasing the action in theorgan, it first flushes the capillary tufts in the glomeruli(Fig. 117, va, gl), extending thence to the vascular plexuses ofthe convoluted tubes (ve, c); but as the tuft
The laws and mechanics of circulation, with the principle involved in animal movement . mids to bringabout this result, each one containing from two to five hundredtubes, which open upon the apices (4) of the pyramids (fromeight to fifteen in number), that project into the calices andpelvis of the kidney. Now, then, the effect of this arrangement is, when the lumenof the renal artery is enlarged for increasing the action in theorgan, it first flushes the capillary tufts in the glomeruli(Fig. 117, va, gl), extending thence to the vascular plexuses ofthe convoluted tubes (ve, c); but as the tufts are the proximalportions, of course arterial pressure should be more effectivehere, tending to strain out the substances that pass easilythrough the animal membranes, passing out with the stream ofwater in which they are suspended, or down the tubes, washing 292 PHYSIOLOGICAL ANATOMY OF TIIK KIDNEYS. out the secretions as it goes along; while the remainder, whichis under reduced pressure by reason of this depletion, passesout through the efferent vessel to the capillary network of. Fig. 117.—Course of the Blood-Vessels within the Cortex Proper (diagrammatic), m,The space occupied by the medullary radius ; b, that occupied by the convolutedcanals ; ai, arteria inter-lobularis ; vi, vena iuter-lobularis ; va, vas afferens glome-ruli ; ve, vas efferens glomeruli; gl, glomerulus ; vz, venous twig of the inter-lobularvein. —Ludwig.
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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration
