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The renal calyces (40X)

Microimage
The renal calyces. Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E).

The renal calyces are chambers of the kidney through which urine passes after leaving the renal pyramids / papillae.  Further distally one finds the renal pelvis (not seen in this image) which is the expanded upper end of the ureter where urine is collected before being transported to the bladder.

Published August 21st 2023, updated November 8th 2023.