<prompt> Development of labia majora is fromUrogenital sinusUrethral foldGenital ridgeGenital swelling  <response>: Labia Majora and Scrotum develops from the same structure known as Labio scrotal swelling. Genital ridge forms testes,ovary Urethral folds also known as genital folds forms the labia minora. Urogenital sinus forms urinary bladder, urethra And lower pa of vagina. 