Explain the Glomerulus: Structures of a Nephron

Glomerulus: It is the main filter of the nephron and lies within the Bowman's capsule. It resembles a twisted mass of tiny tubes as can be seen in Figure, through which the blood passes. Being semi-permeable, it allows the passage of water and the soluble wastes. The glomerular capsule forms a cup-like structure and is a thin double membrane enclosing the glomerulus. The main function of glomerulus is to filter the waste products from the blood and thus, initiate urine formation.