Question

Value based questions.
Imagine a water molecule has just entered the proximal convoluted tubule of the nephron
that will eventually be part of the urine. What parts of the nephron will it travel through (in order) before it reaches the renal pelvis?

Answer 1

The water molecule that enters PCT in nephron travels in the following order:

Proximal convoluted tubule→→ descending limb of the loop of Henle→→ ascending limb of the loop of Henle→→ distal
convoluted tubule→→ collecting duct→→ papillary duct →→ minor calyx →→ major calyx →→renal pelvis.