Anatomy All are true regarding the trigone of the urinary bladder except- A Mucosa is loosely associated to the underlying musculature B Mucosa is smooth C It is lined by transitional epithelium D It is derived from the absorbed part of the mesonephric duct 💡 Explanation All are true regarding the trigone of the urinary bladder except- ✓ Correct Answer: A. Mucosa is loosely associated to the underlying musculature