The second twisty part
The kidney's tiny tube twists near the filter, dips into a U-shaped loop, then twists again. This second twisty part is the distal convoluted tubule. Distal means far.
Its cells are shaped like little blocks. They have only a few tiny fingers on top, but they have lots of mitochondria.
Wow!
Most of the water and salt have already been taken back by now. These cells do the careful last touches, like a chef adding a pinch of salt.