Which structures rely on fluid pressure for the movement of urine?

I believe many structures within the kidney rely on the fluid pressure. These includes, the glomerulus, Bowman;s capsule, and the tubules together with all the parts of  the kidney that rely on the fluid pressure to move the urine components along. Fluid pressure also enhances processes such as ultrafiltration, that takes place in the glomerulus. 

Well i had the same answer, so the correct answer would be a. but in this case it would be the one with plasma membrane and cell wall circled that is next to the hairy pill type of thing.

Yes yes yes very good