Anatomy of the renal pelvis in the hamster

The American Journal of Anatomy
E R Lacy, B Schmidt-Nielsen

Abstract

The hamster renal pelvis has been studied by means of low-power light microscopy, scanning electron microscopy and morphometric analyses. The results of this study are highly suggestive that the contact of pelvic urine with the other medulla as well as with the inner medulla may be an important aspect of final urine formation. The outer medulla constituted nearly 50% of the total pelvic surface area, with the inner stripe of the outer medulla more than twice the pelvic surface area of the outer stripe of the outer medulla. The large outer medullary pelvic surface area was accounted for by the elaboration of the upper pelvic walls into peripelvic columns, opercula ("secondary pyramids"), fornices and secondary pouches. A thin simple-squamous to low cuboidal pelvic epithelium separated pelvic urine from outer medullary parenchyma. The inner medulla which constituted about one quarter of the total pelvic surface area was covered by a cuboidal to columnar pelvic epithelium which appeared morphologically similar to the papillary collecting duct epithelium. Tubules and capillaries of the inner medulla did not appear as closely juxtaposed to the pelvic epithelium as did those of the outer medulla. Cortical tissue comprised only 11.7% ...Continue Reading

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Citations

Aug 1, 1979·The American Journal of Anatomy·E R Lacy, B Schmidt-Nielsen
Oct 1, 1988·Acta Physiologica Scandinavica·A StenbergA E Persson
Jan 1, 1987·The Journal of Clinical Investigation·J M Sands, M A Knepper
Mar 22, 2005·Cell and Tissue Research·Rok RomihKristijan Jezernik
Feb 1, 1987·Kidney International·B Schmidt-Nielsen
Jul 1, 1981·Kidney International·L N Reinking, B Schmidt-Nielsen
Sep 1, 1991·The Anatomical Record·N S Maluf
Mar 1, 1982·The American Journal of Anatomy·R Verani, R E Bulger
Aug 29, 2001·The Journal of General Physiology·M Zamir
Mar 20, 2020·Physiological Reviews·Marianela G DalghiGerard Apodaca

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