Trigone of Urinary Bladder develops from ?
Trigone is derived from mesoderm although bladder is endodermal in origin. Intermediate mesoderm forms the Genito urinary system. Endoderm forms the urogenital sinus which forms urinary bladder and urethra.
Mesoderm
Ectoderm
Endoderm of urachus
Endoderm of urogenital sinus
Development of GU system and Neuro-vascular supply of pelvis & perineum