<prompt> Trigoneof urinary bladder develops from -Urogenital sinusVesicourethral canalMesonephric ductEndoderm  <response>: Ans. is c i.e., Mesonephric duct o The urinary bladder except trigone is derived from vesicourethral canaL cranial part of urogenital sinus endodermal.o Trigone is derived from Absorbed part of Wolffian ductmesonephrk duct mesodermal. 