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 @Love_Ranaa

Answer 1

There is a valve at the meeting point between each ureter and the bladder to prevent the backflow of urine into the kidneys. So I would say...

Answer 2

Between A and C..I'm thinking

Answer 3

I mean A and B :)

Answer 4

ok which one would u go for A or B

Answer 5

a

Answer 6

A

Answer 7

it was right

Answer 8

Great :) @joe_payton17