Der Exkretionsapparat

Möllendorff, Wilhelm von; Peter, Karl

doi:10.1007/978-3-642-48021-8_1

Cited by 67 publications

(12 citation statements)

References 252 publications

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“…The glomerulus is never formed by a single vessel spreading in branches with blind sacculations as claimed by TRABUCCO and MARQUEZ (1952) nor by such simple loops of capillaries as contended by VIMTRUP (1928), MOLLENDORFF (1930) and many other authors.…”

Section: Discussionmentioning

confidence: 92%

“…The same result was arrived at by some early investigators in man and various animals including the rat (JOHNSTON, 1899;HALL, 1955;BOYER, 1956;ELIAS, 1957). However, this view has been denied or ignored by many authors (VIMTRUP, 1928;MOLLENDORFF, 1930;WILMER, 1941;TAKAHATA et al, 1958;BARGMANN, 1967), and the concept enunciated by these authors that the glomerulus is a system of capillary loops is still generally accepted except in a few textbooks (ROUILLER, 1969;HAM, 1969;HAMBURGER, 1971).…”

mentioning

confidence: 99%

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Vascular Arrangement of the Rat Renal Glomerulus. A Scanning Electron Microscope Study of Corrosion Casts

Murakami

1972

Arch. Histol. Jap., Arch. Histol. Jpn

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Section: Discussionmentioning

confidence: 92%

mentioning

confidence: 99%

Vascular Arrangement of the Rat Renal Glomerulus. A Scanning Electron Microscope Study of Corrosion Casts

Murakami

1972

Arch. Histol. Jap., Arch. Histol. Jpn

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“…When arterio-venous differences were corrected to a constant oxygen capacity, epinephrine appeared to cause an increase (from 2.2 to 4.7 volumes per cent). We of fluid from the kidney occurs which is not-accounted for except by passage through lymphatic or capsular vessels (7) 6 or by what is unlikely and was not seen, a marked swelling of the kidney itself.…”

Section: Methodsmentioning

confidence: 99%

“…This suggests that lymphatic vessels might be concerned in the tubular reabsorption of fluid. The inverse action of caffeine can best be 6 According to Kaplan,Friedman and Kruger (24) renal lymph in the dog is derived from both renal blood plasma and tubular reabsorbed fluid. These explained by decreased tubular absorption and the increased renal blood flow which it produces in the narcotized dog under operative conditions.…”

Section: Methodsmentioning

confidence: 99%

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Can Vascular Shunting Be Induced in the Kidney by Vasoactive Drugs? 1

Reubi

Schroeder²

1949

J. Clin. Invest.

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Microvascular architecture of the human urinary bladder wall: A corrosion casting study

Miodoński

Litwin

1999

Anat. Rec.

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The vascular system of the urinary bladder wall effectively performs its function in spite of considerable spatial changes due to the filling/voiding cycle. However, only a few studies have dealt with the microvascular architecture of the bladder wall and only two, using old-fashioned techniques, were devoted to the human bladder. This study presents the microvasculature of the human bladder wall visualized by scanning electron microscopy of vascular corrosion casts. Postoperative bladder specimens obtained from patients with advanced bladder tumors were filled with small amount (80 ml) of saline and perfused via at least four largest arteries with anticoagulant-containing saline followed by paraformaldehyde/glutaraldehyde fixative and Mercox resin. After polymerization of the resin, the vascular casts were macerated with potassium hydroxide, cleaned with formic acid and water and freeze dried. Only regions of the bladder wall distant to the tumor were examined in light and scanning electron microscopes. The almost empty state of the bladder was manifested by extensive folding of the mucosa and tortuosity of almost all vessels other than capillaries. The branches of main arteries and veins formed an adventitial/serosal plexus which directly supplied/drained the capillary network of the muscularis and sent long perpendicular vessels to the mucosal plexus. These vessels had straight or coiled course depending on whether they terminated at the top or at the base of the mucosal folds. The rich mucosal plexus followed the folds parallel to their surface and gave off short, straight, mostly perpendicular twigs communicating with the subepithelial capillary network. Apart from very few vascular interconnections between the mucosal plexus and the muscularis, the submucosa was generally avascular. The subepithelial capillary network showed extreme density and uneven contours of the capillaries, only in less folded areas of trigone and urethral orifice the network was looser and capillaries thinner. The capillary system of the muscularis was poorly developed. Due to its architecture, tortuosity, and coiling/uncoiling capabilities, the microvasculature of the human urinary bladder wall seems to efficiently accommodate changes associated with cyclic contraction and stretching. Disturbances in blood flow induced by overdistension of the bladder reported in several studies may be due to pressure of the urine affecting the patency of the vessels rather than to the spatial insufficiency of the vascular system.

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Der Exkretionsapparat

Cited by 67 publications

References 252 publications

Vascular Arrangement of the Rat Renal Glomerulus. A Scanning Electron Microscope Study of Corrosion Casts

Vascular Arrangement of the Rat Renal Glomerulus. A Scanning Electron Microscope Study of Corrosion Casts

Can Vascular Shunting Be Induced in the Kidney by Vasoactive Drugs? 1

Microvascular architecture of the human urinary bladder wall: A corrosion casting study

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