The network of blood capillaries in the kidney capsule is referred to as

1. Analyze the question The question asks for the name of the network of blood capillaries found inside the cup-shaped structure (Bowman's capsule) of the nephron in the kidney.

2. Explain the concept The nephron is the functional unit of the kidney. Its main parts are:

• Bowman's capsule: a cup-shaped structure that surrounds the capillary network.
• Glomerulus: a tuft (network) of blood capillaries inside Bowman's capsule. Blood is filtered here under high pressure (ultrafiltration).
• Proximal convoluted tubule, loop of Henle, distal convoluted tubule: where reabsorption and secretion occur.
• Collecting duct: carries urine to the renal pelvis.

3. Go through the options

• A. Capsule: This is the cup-shaped structure that holds the capillaries. It is not the capillary network itself.
• B. Glomerulus: This is the network of blood capillaries inside Bowman's capsule, so it fits the description.
• C. Pelvis: This is the funnel-shaped cavity that collects urine and passes it to the ureter.
• D. Pyramid: These are cone-shaped masses in the medulla, made up mostly of collecting ducts.
• E. Ureter: This is the tube that carries urine from the kidney to the bladder.

4. Answer The network of blood capillaries in the kidney capsule is the glomerulus, which is option B.

5. Exam tip Remember: "Glomerulus = Globe of capillaries." Blood enters the glomerulus through the wide afferent arteriole and leaves through the narrower efferent arteriole. This difference in width builds up the pressure that drives filtration. WAEC and NECO often test this together with the parts of the nephron, so be ready to label a nephron diagram.