The kidney and nephron | Renal system physiology | NCLEX-RN | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: Overview of how the nephrons in the kidney filter blood and reabsorb water and other molecules. Created by Sal Khan. Watch the next lesson: Missed the previous lesson? NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at ). About Khan