<prompt> Epithelium of Trigone of bladder is derived fromVesicourethral CanalMesodermSplanchnopleuric MesodermUrachus  <response>: The urinary bladder is derived from the cranial pa of the vesicourethral canal endoderm.The epithelium of the trigone is derived from absorbed mesonephric ducts mesodermReference: Inderbir Singh Embryology; 10th edition; Page no: 292 