renal sinus

renal sinus
renal sinus n the main cavity of the kidney that is an expansion behind the hilum and contains the renal pelvis, calyxes, and the major renal vessels

* * *

sinus renalis [TA] a cavity within the substance of the kidney, occupied by the renal pelvis, calices, vessels, nerves, and fat.

Medical dictionary. 2011.

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