Final answer:
The structure surrounding the capillaries in the renal corpuscle is the Bowman's capsule, which serves as the initial chamber for the filtration process in the nephron. Option 2 is correct.
Step-by-step explanation:
The structure that surrounds the network of capillaries in the renal corpuscle is known as the Bowman's capsule. The renal corpuscle, located in the renal cortex, consists of the glomerulus and Bowman's capsule.
Bowman's capsule serves as a containment unit where the filtration of blood takes place, initiating the process of urine formation in the nephron. After the filtration at the glomerulus, the filtrate enters the rest of the nephron which includes the renal tubule and the Loop of Henle, but it's the Bowman's capsule that directly encompasses the glomerular capillaries.
The structure that surrounds the network of capillaries in the renal corpuscle is the Bowman's capsule. It is a cup-shaped chamber that surrounds the glomerulus, which is the network of capillaries.