Which structure in the kidney contains the glomerulus?

The structure in the kidney that contains the glomerulus is Bowman's capsule. Bowman's capsule is a cup-like sac at the beginning of the nephron where filtration of blood takes place. It encases the glomerulus, which is a network of tiny blood vessels (capillaries) responsible for filtering blood. During the filtration process, water, ions, and small molecules pass from the blood in the glomerulus into the Bowman's capsule, forming what is known as the filtrate. This process is the first step in urine formation.

In contrast, the renal pelvis serves as a funnel for urine flowing to the ureter, while the collecting duct is involved in the concentration and transport of urine after it has been formed through filtration and reabsorption. The Loop of Henle is part of the nephron where further reabsorption occurs, but it does not contain the glomerulus. Each of these structures plays important roles in kidney function but does not share the same primary function of filtration as Bowman's capsule and the glomerulus.