What prevents the backflow of urine from the urinary bladder to the kidneys?

peristaltic action of muscles of the ureters

peristaltic action of muscles of the kidneys

pulling action of the force of gravity

Question

What prevents the backflow of urine from the urinary bladder to the kidneys?

peristaltic action of muscles of the ureters

peristaltic action of muscles of the kidneys

pulling action of the force of gravity

anonymous · Answer

@Love_Ranaa  hello are u able to help

love_ranaa · Answer

peristaltic action of muscles of the kidneys

anonymous · Answer

thank u i thought it was B. but u never know got to ask a smart person lol

love_ranaa · Answer

:)