The formation of urine begins at which structure?
1. Glomerulus
2. Ureter
3. Collecting duct
4. Henle's loop
Correct Answer: 1
Rationale 1: The glomerulus is the site where filtration and production of urine begin.
Rationale 2: The processes of filtration and urine production do not begin in the ureter.
Rationale 3: Fluid leaving the collecting duct is urine.
Rationale 4: Reabsorption and secretion take place along the length of Henle's loop.
Global Rationale: The glomerulus is the site where filtration and production of urine begin. The processes of filtration and urine production do not begin in the ureter. Fluid leaving the collecting duct is urine. Reabsorption and secretion take place along the length of Henle's loop.
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