. A treatise on practical anatomy: for students of anatomy and surgery . s of the Kidney. A, capillaries of the cortex; B, of the medullary ; a, interlobular artery ; 1, vas afferens;2. vas efferens; r, e, vasa recta; c, veuae rectae ; v, v, interlobular vein ; S, origin of a venastellata ; i, i, Bowmans capsule and glomerulus; x, x, convoluted tubules ; t, t, Henlesloop ;n, n, junctional piece ; o, o, collecting tubes ; 0, excretory tube. number of curved branches called the collectmg tubes;these become much twisted, convoluted, and form the con-voluted tubes of Ferrein, a name applied to all
. A treatise on practical anatomy: for students of anatomy and surgery . s of the Kidney. A, capillaries of the cortex; B, of the medullary ; a, interlobular artery ; 1, vas afferens;2. vas efferens; r, e, vasa recta; c, veuae rectae ; v, v, interlobular vein ; S, origin of a venastellata ; i, i, Bowmans capsule and glomerulus; x, x, convoluted tubules ; t, t, Henlesloop ;n, n, junctional piece ; o, o, collecting tubes ; 0, excretory tube. number of curved branches called the collectmg tubes;these become much twisted, convoluted, and form the con-voluted tubes of Ferrein, a name applied to all the tiibuli THE KIDNEYS. 389 of the kidney, except the straight tubes of BelHni in thepyramids. The curved or collecting tubule terminates in thedistal convoluted tubule, this in the irregular tubulewhich leads into the loop of Henle, a contracted portionof the tubule, and which terminates in the spiral spiral tubule terminates in the proximal convolutedtubule, which becomes contracted and then expands, form-ing the capsule of the Malpighian corpuscle. The. Fig. 170.—The Secreting of the Kidney. II. Bowmans capsule and glomerulus; a, vas afferens; e. vas efferens; c. capillary net-work of the cortex: k. enilotlielium of the capsule; h, origin of a convoluted tubule; III,rodded cells from a convoluted tubule; 2. seen from the side, with, g. inner granularlone: 1, from the surface ; IV, cells lining Henles loop; V, cells of a collecting tube; VI,section of an excretory tube. straight tubuli are lined with columnar epitheliumthroughout; the convoluted tubuli, up to the corpuscle,present a varied epithelium; in general, it may be saidto be of the glandular type. The epithelium rests on abasement membrane, which is supported by a delicatefibrous coat. The cortical substance dips down between the pyra-mids, forming the columns of Bertin. A single tubulebecomes so multiplied by repeated divisions as to form acone or pyramid, and the pyramids of Malpighi may be
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomy, bookyear1891
