Question

the ______ collects urine from several nephrons, and empties it into the renal pelvis. enter answer

Explanation:

In the context of human anatomy (a subfield of Biology, which is under Natural Science), the collecting duct (or more specifically, the minor calyx, but more accurately, the collecting duct system's component like the renal papillary duct or the major calyx? Wait, no—actually, the "collecting duct" collects urine from nephrons, and then the renal calyces (minor and major) and renal pelvis. Wait, no, the correct structure that collects urine from several nephrons (specifically, the collecting ducts of multiple nephrons converge into larger structures, but the "collecting duct" itself collects from a single nephron's tubules? Wait, no, let's recall: Each nephron has a collecting duct, and multiple collecting ducts from several nephrons empty into the renal papilla, then into the minor calyx, then major calyx, then renal pelvis. But the question is about the structure that collects from several nephrons. Wait, maybe the "collecting duct" is part of a single nephron, but when multiple collecting ducts (from multiple nephrons) come together, they form the renal papillary ducts, which empty into the minor calyx. But maybe the answer here is "collecting duct" or "renal calyx"? Wait, no, the standard answer for this question (a common biology question) is that the collecting duct (or more precisely, the "collecting tubule" or "collecting duct" system) collects urine from several nephrons (actually, each nephron's distal tubule connects to a collecting duct, and multiple collecting ducts merge). Wait, no, the correct term here is the collecting duct? Wait, no, let's check: The nephron's tubule (distal convoluted tubule) connects to a collecting duct. Multiple collecting ducts (from multiple nephrons) then empty into the renal papilla, which leads to the minor calyx. But the question says "collects urine from several nephrons"—so the structure that does that is the collecting duct? Wait, no, each collecting duct receives from one nephron? No, no—each nephron has its own collecting duct? No, actually, multiple nephrons can feed into a single collecting duct. Wait, maybe the answer is "collecting duct" or "renal calyx"? Wait, no, the standard answer to this fill - in - the - blank question in biology (human anatomy/physiology, part of Biology subfield) is "collecting duct" or more accurately, the "minor calyx"? No, I think the correct answer is "collecting duct" or "renal papillary duct"? Wait, no, let's recall the renal structure: Nephrons → collecting ducts (each collecting duct can receive from multiple nephrons? No, each nephron's distal tubule connects to a collecting duct. So one collecting duct can be fed by multiple nephrons? Or each nephron has its own collecting duct? I think I'm overcomplicating. The standard answer to this question (as per biology textbooks) is that the collecting duct collects urine from several nephrons (actually, the distal tubules of nephrons empty into collecting ducts, and multiple collecting ducts then empty into the renal pelvis via the calyces). Wait, no, the correct term here is the collecting duct? Wait, no, the answer is "collecting duct" or "renal calyx"? No, let's check: The collecting duct (or "collecting tubule") is the structure that collects urine from the nephron's tubules, and multiple collecting ducts (from several nephrons) then empty into the renal pelvis. So the answer is "collecting duct".

Answer:

collecting duct