part of part of connected to connected to system organ part urinary bladder umbilicus apex of urinary bladder 2024-02-29T10:29:33Z apex of bladder The anterior angle of the superior surface of the urinary bladder. The apex of urinary bladder is connected to the umbilicus by the urachus in embryos, and by the median umbilical ligament, a remnant of urachus, in adults. vertex of urinary bladder UBERON:8600048 FMA:15914 Aleix Puig-Barbé Ellen Quardokus Sanjay Jain