Which structure inside a human nephron is responsible for the non-selective ultrafiltration of blood under hydrostatic pressure?
Answer and explanation
Correct answer: D. Glomerulus
- Step 1: Blood arrives at high pressure in the afferent arteriole and enters the fenestrated capillary tuft known as the glomerulus. Step 2. Water, salts, glucose, and urea are filtered across Bowman's capsule membrane by hydrostatic pressure. Answer: Glomerulus. Why not the others: Loop of Henle creates medullary hyperosmolarity; collecting duct reabsorbs water; proximal tubule reabsorbs solutes.
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