Development of the urinary bladder is from-
Ans. is 'a' i.e., Urogenital Sinus * The urinary bladder (except trigone) is derived from vesicourethral canal, cranial part of urogenital sinus (endodermal). Trigone is derived from Absorbed part of Wolffian duct/mesonephric duct (mesodermal).
Urogenital Sinus
Paramesonephric Duct
Metanephric Blastema
Proctodaeum
Embryology