The pelvic epithelium of the rat kidney: a scanning and transmission electron microscopic study

The American Journal of Anatomy
R Verani, R E Bulger


The renal pelvis of the rat is characterized by extensions called specialized fornices that penetrate into the outer zone of the outer medulla (a type II as classified by Pfeiffer, 1968, 1970). The renal pelvic epithelium, therefore, covers areas of the kidney from the inner medulla, the inner and outer stripe of the outer medulla, and the cortex. The renal pelves of seven rats were studied by transmission and scanning electron microscopy. The transitional epithelium on the nonparenchymal surface of the pelvis was three to four cell layers thick (zone 0-1). This epithelium became thinner where it covered the renal cortex (zone 1-2) or the outer medulla. Although the apical cells of the epithelium retained the asymmetric luminal unit-membrane plaques, the number of cytoplasmic fusiform vesicles decreased as one studied the epithelium progressing over the zones from cortex toward papilla. Scanning electron microscopy demonstrated a small number of surface cells of a different morphology that were characterized by apical microvilli. The number of these microvillous lining cells increased as the epithelium covering the outer (zone 2-3) and inner (zone 3-4) stripe regions of the outer medulla was viewed, until the inner medulla was ...Continue Reading


Mar 1, 1979·The American Journal of Anatomy·E R Lacy, B Schmidt-Nielsen
Aug 1, 1979·The American Journal of Anatomy·E R Lacy, B Schmidt-Nielsen
Jul 1, 1978·The American Journal of Physiology·H F Schoen, O A Candia
Apr 29, 1975·Pflügers Archiv : European journal of physiology·J Stewart
Dec 23, 1975·Anatomy and Embryology·B KaisslingW Kriz
Jul 25, 1974·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·R M HicksR C Warren
Mar 1, 1974·Kidney International·F J Silverblatt
Jan 1, 1972·Pflügers Archiv : European journal of physiology·W Schütz, J Schnermann
Jan 1, 1970·Zeitschrift für Zellforschung und mikroskopische Anatomie·J S Dixon, J A Gosling
May 1, 1969·The Journal of Cell Biology·J J GranthamJ Orloff
Jul 1, 1965·The Journal of Cell Biology·R M Hicks
Oct 1, 1980·Kidney International·B Schmidt-NielsenL N Reinking


Oct 1, 1988·Acta Physiologica Scandinavica·A StenbergA E Persson
Nov 1, 1984·The Journal of Clinical Investigation·J BargmanR L Jamison
Mar 22, 2005·Cell and Tissue Research·Rok RomihKristijan Jezernik
Feb 1, 1987·Kidney International·B Schmidt-Nielsen
Mar 10, 2016·Toxicologic Pathology·Yuki TomonariJohn Curtis Seely
Jan 1, 1983·The Anatomical Record·R E Bulger, D C Dobyan
Jul 24, 2010·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Y Y HeP Du
Mar 20, 2020·Physiological Reviews·Marianela G DalghiGerard Apodaca

Related Concepts

Renal Pelvis
Electron Microscopy
Scanning Electron Microscopy
August Rats

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