Chambers's encyclopædia; a dictionary of universal knowledge . interior of the medullary structure is firmer than the cortical,and instead of being gramd;xr, presents a striateda])pearance, from its being composed of minutediverging tubes (the uriniferous tubes, or tubes ofBellini), which run in straight lines through thisportion of the kidneys, after having run in a highlyconvoluted course through the cortical jiortiou. The cavity occupying the interior of the kidneys(the sinus or pelvis) is lined by mucous membrane,which, through the medium of the ureter, is con-tinuous with that o
Chambers's encyclopædia; a dictionary of universal knowledge . interior of the medullary structure is firmer than the cortical,and instead of being gramd;xr, presents a striateda])pearance, from its being composed of minutediverging tubes (the uriniferous tubes, or tubes ofBellini), which run in straight lines through thisportion of the kidneys, after having run in a highlyconvoluted course through the cortical jiortiou. The cavity occupying the interior of the kidneys(the sinus or pelvis) is lined by mucous membrane,which, through the medium of the ureter, is con-tinuous with that of the bladder, aud which extendsinto the tissue of the kidneys, to line the uriniferoustubes. The mucous membrane forms a cup-likecavity around the termination of each pyramid, andthe ca%-ity, termed the cali/x, receives the ui-ine fromthe open terminations of the tubes, and conveys ittowards the jjclvis, from whence it passes downthe ureter into the bladder. Each kidney is sui)[)UL-d with blood by a renalartery, a large trunk which comes off at right angles. Plan of the Renal Circulation in Man and the Mammalia:a, terminal hratich of tlic artery, givinsc the terminal twig-, a/,tn tlie Mal|)ijrhiaii tuft, »i, from which emerge-i the efferentvessel, c/. Oilier eflerenl vessels, e, e. e, are seen proceedingfiiim otiier tufts, and entering the capillaries surroundirifjthe iirinifiTDUs tube, t. From this plexus of capillaries theemulgent vein, ec, springs. to the aorta. The blood, after the separation of thevarious matters which constitute the Urine (q. v.),is returned into the venous system by the renal oremidgent vein, which opens into the inferior venacava. The nerves are derived from the renal plexus,which is formed by filaments of the solar plexus andthe lesser splanchnic nerve. They belong entirelyto the ganglionic or sympathetic system. The Malpighian bodies are found in all vertebrateanimals. In mammals, which are the only animalsin which there is a division into a cortic
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisherlondo, bookyear1868
