part of part_of part of part_of connects connects contributes to morphology of ureter renal system urinary bladder valve anatomical junction ureterovesical junction EMAPA:37783 FMA:15899 MA:0003020 NCIT:C106202 The valve-like structure found at the site of entry of the ureter into the urinary bladder, normally displays an oblique angulation through the detrusor to avoid reflux of urine up the ureters and the kidney UBERON:0009973 uberon vesico-ureteral junction vesico-ureteric junction vesicoureteric junction