Ureteral reflux is a condition characterized by the backward flow of urine from the bladder into the ureters. Which of the following structures helps prevent ureteral reflux?
Ureteral valves
Ureteral peristalsis
Ureteral adventitia
Ureteral submucosa
The ureter has structures called ureteral valves that aid in preventing ureteral reflux, or the backflow of urine from the bladder into the ureters. As one-way flaps, these valves open to allow urine to pass from the kidneys to the bladder and close to stop it from returning up into the ureters. Therefore, the correct answer is option 1