Which structure surrounds the glomerulus within the nephron?

• A. Collecting duct
• B. Ureter
• C. Bowman's capsule
• D. Renal pelvis

Answer: (C)

The structure that surrounds the glomerulus in the nephron is Bowman's capsule. This cup-shaped enclosure forms the filtration site where plasma fluid first collects after passing through the glomerular filtration barrier. The glomerulus sits inside Bowman's capsule, with a visceral layer tightly associated with the capillaries and a parietal layer creating the enclosing wall. Filtration happens into Bowman's space, starting the process of urine formation.

The other structures have different roles: the collecting duct receives filtrate from tubules and transports it toward the renal pelvis; the ureter carries urine from the kidney to the bladder; the renal pelvis collects urine from calyces before it moves to the ureter.