renal papilla


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Related to renal papilla: nephron, renal pyramid, renal column, Renal medulla

renal papilla

[′rēn·əl pə′pil·ə]
(anatomy)
A fingerlike projection into the renal pelvis through which the collecting tubules discharge.
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A significantly increased level of nuclear p-ERK expression was identified in the CD and TLH epithelium of the renal papilla after exposure to both +10Gz and +13GZ.
Further analysis of the unattached stones using micro-computed tomography showed at least one internal region of calcium phosphate within each of these calcium oxalate stones, supporting the hypothesis that in idiopathic hypercalciuria patients, both attached and unattached stones occur as a result of a common pathogenic mechanism; that is, all originate initially as attached to interstitial plaque on the renal papilla.
The name medullary sponge kidney is derived from the appearance on x-ray of the small aggregates of fluid sacs, or cysts, in the renal papilla.