NCIt definition : A tuft of capillaries situated at the entrance to each nephron, within the Bowman's
capsule. This tuft functions as the first stage in filtering blood in the kidney.;
Alternative definition : NCI-GLOSS: A tiny, round cluster of blood vessels within the kidneys. It filters the
blood to reabsorb useful materials and remove waste as urine.; CDISC: A cluster of convoluted capillaries beginning at each nephric tubule in the
kidney and held together by connective tissue.;