We just learned about the Interlobular Arteries and Veins.
Another part of the kidney is the Nephron.
In the renal column that we learned about, the nephron is a very tiny microscopic part of the renal column that helps do the work of filtering and cleaning the blood.
![nephron](https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Kidney_Nephron.png/376px-Kidney_Nephron.png)
(from: wikipedia - nephron)
Kid Facts - Blast from the past: Helix