What is Bowman's capsule?

• A. An enlarged, cup-shaped & complete capsule surrounding the glomerulus
• B. A spherical bag in the liver
• C. The muscle of the heart
• D. A duct leading to the bladder

Answer: (A)

Bowman's capsule is the cup-shaped structure of the nephron that surrounds the glomerulus, forming the renal corpuscle where blood filtration begins. It collects the filtrate produced by the glomerulus and channels it into the proximal tubule, effectively enclosing the glomerulus in a enlarged, cup-like capsule within the kidney. It’s not a structure in the liver, not cardiac muscle, and not a duct to the bladder, which are different parts of the body.