<prompt> TRUE about ureters entry into the bladder:1. At medial angle of trigone2. At lateral angle of trigone3. Make an angle4. Is straight5. Valveless1,3 52,3 51,2 41,3 5  <response>: The ureters enters the bladder wall obliquely to open into it at an angle of its trigone. Ureter Entry To BladderUreteric orifices are placed at the posterolateral trigonal angle.The ureter pierces the bladder wall obliquely, and this provides valve like action but not true valve, which prevents reverse flow of urine towards kidneys as bladder fills.Ref: Grays Anatomy 40e, Page 1240; BDC 4e, Vol. II, Page 301. 