Which statement about the bladder trigone is true?

Which statement about the bladder trigone is true?

• A. It is a triangle-shaped area on the bladder base with three openings
• B. It is located on the bladder dome
• C. It contains many rugae
• D. It is lined by stratified squamous epithelium

Answer: (A)

The bladder trigone is a triangular area on the floor (base) of the bladder defined by the openings of the two ureters and the internal urethral orifice. This configuration makes it a triangle on the bladder base, not on the dome. Its mucosa is smooth and lacks the rugae seen in other parts of the bladder, reflecting its relatively fixed, low-distension nature. The lining is urothelium (transitional epithelium), not stratified squamous. So the true statement is that it is a triangle-shaped area on the bladder base with three openings. It’s not on the dome, it doesn’t have many rugae, and it isn’t lined by stratified squamous epithelium.

The bladder trigone is a triangular area on the floor (base) of the bladder defined by the openings of the two ureters and the internal urethral orifice. This configuration makes it a triangle on the bladder base, not on the dome. Its mucosa is smooth and lacks the rugae seen in other parts of the bladder, reflecting its relatively fixed, low-distension nature. The lining is urothelium (transitional epithelium), not stratified squamous. So the true statement is that it is a triangle-shaped area on the bladder base with three openings. It’s not on the dome, it doesn’t have many rugae, and it isn’t lined by stratified squamous epithelium.