What is the tuft of capillaries surrounded by bowmans capsule?

The tuft of capillaries surrounded by Bowman's capsule is known as the glomerulus. It is a crucial component of the nephron in the kidney, where the initial filtration of blood occurs. The glomerulus allows water, ions, and small molecules to pass into Bowman's capsule, forming the filtrate while retaining larger molecules and blood cells in the bloodstream. This process is essential for the regulation of blood composition and the formation of urine.