Structure/Morphology
Each minor calix is funnel shaped and lined with smooth muscle for peristaltic motion of urine distally.
Related parts of the anatomy
Key Features/Anatomical Relations
The minor calices directly surround each renal papilla (the apex of each renal pyramid) in order to collect the urine excreted from the pyramids. Two or more minor calices continue as a single major calix.
Function
The minor calices serve as funnel shaped urine collectors due to their close approximation to renal papilla.
List of Clinical Correlates
—Kidney stones
