This image shows the
lumen and wall of a minor calyx. This funnel shaped structure fits over each
renal papilla and collects the urine that flows through the area cribrosa
from the papillary ducts of Bellini. In this image, the renal papilla is seen
in the upper right corner and the wall of the calyx is seen in the lower left
corner. The latter is covered by transitional epithelium.
