The basic filtration unit of kidney is called ___________.
Glomerulus
The basic filtration in the kidney occurs in the glomerulus. The Glomerulus consists of a tuft of capillaries. Glomerulus is held by a cup shaped cluster called the Bowman's capsule. The capillary in close proximity to the Bowman's capsule is called glomerulus capillary. This has a narrower lumen as compared to the capillary entering the glomerulus.This difference in diameter provides the necessary pressure for filteration through specialised cells of the Bowman's capsule.