Urine is prevented from flowing back into the ureters from the bladder by ________.
A) compression of the ureteral openings
B) the external urethral sphincter
C) the internal urethral sphincter
D) the ureteral sphincters
E) ureteral valves

Question

Quizplus · Accepted Answer

The ureteral openings into the bladder are compressed as the bladder fills, which helps prevent urine from flowing back into the ureters. This mechanism is essential for the normal flow of urine and to prevent reflux, which could lead to kidney damage.

Urine Is Prevented from Flowing Back into the Ureters from the Bladder