Homo sapiens minor calyx https://upload.wikimedia.org/wikipedia/commons/7/7e/Kidney_PioM.png calices renales minores UBERON:0001227 Portion of the urinary collecting system within the kidney that drains one renal papilla. FMA:15614 MA:0001645 calices renales minores SCTID:26293004 one renal papilla projects into the lumen of one minor calyx; several minor calyces unite to form a major calyx EMAPA:18678 minor calix Wikipedia:Minor_calyx kidney calyx