ATI RN
Urinary System Multiple Choice Questions Questions
Question 1 of 5
Mesangial cells
Correct Answer: D
Rationale: Mesangial cells phagocytose basement membrane not restricted (extra-glomerular exist), parietal (podocytes), or creatinine-secreting. This specifies their role, critical for GBM maintenance, contrasting with incorrect functions.
Question 2 of 5
Which matched pair is INCORRECT
Correct Answer: B
Rationale: Renin is from afferent not efferent arterioles; other pairs (macula/DCT, fenestrae/glomerulus, collecting/ray) are correct. This corrects renin source, key for RAAS, contrasting with true associations.
Question 3 of 5
Which association is CORRECT?
Correct Answer: C
Rationale: Macula densa has basal Golgi not PCT (brush), DCT (no brush), or efferent (renin in afferent). This identifies correct pair, key for histology, contrasting with misassociations.
Question 4 of 5
Blood in the arcuate arteries flows next into the:
Correct Answer: C
Rationale: Arcuate arteries supply interlobular arteries not afferent (next), efferent (post-glomerular), interlobar (prior), or stellate (cortical veins). This repeats Q29, key for flow, contrasting with missteps.
Question 5 of 5
The urinary system develops from:
Correct Answer: B
Rationale: The urinary system arises from intermediate mesoderm (nephrogenic cord) not paraxial (somites), lateral plate (body cavities), all, or none. Intermediate mesoderm forms pronephros, mesonephros, and metanephros, driving kidney and ureter development. This distinguishes germ layer roles, critical for embryogenesis, contrasting with non-urinary mesoderm sources.