Question

the urine present in the bladder does not flow back into ureters give reason​

Answer 1

Answer:

Secondary VUR: The most common cause of secondary VUR is a blockage by a tissue or narrowing in the bladder neck or urethra. These problems cause urine to back up into the urinary tract instead of exiting through the urethra. A child may also have nerves to the bladder that don't work as well as they should.

Answer 2

Answer:

When the bladder is full, urine flows out of the body through a tube called the urethra. The ureters normally enter the bladder at a diagonal angle and have a special one-way valve system that prevents urine from flowing back up the ureters in the direction of the kidneys.

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