👉 The glomerulus is a type of capillary network in the kidney that filters blood from the body to the renal cortex. It consists of several layers of thin, straight cells called glomeruli that are surrounded by a layer of Bowman's capsule. Glomerular filtration is the process by which the filtered blood passes through the glomeruli and into the filtrate (the fluid in the nephron). This allows waste products such as urea to be removed from the blood before they can accumulate