ATI RN
Urinary System Multiple Choice Questions Questions
Question 1 of 5
Lacis cells are
Correct Answer: B
Rationale: Lacis cells are extra-glomerular mesangial cells in the JGA not secretory, intra-glomerular, or neuroepithelial. This specifies their identity, key for JGA support, contrasting with other cell types.
Question 2 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 3 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 4 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.
Question 5 of 5
The kidney ascends from the pelvis to the upper lumbar region as a result of:
Correct Answer: B
Rationale: Kidney ascent is driven by lumbar/sacral growth not ureteric elongation (forms collecting system), cap migration, or all; 'b' fits best. This explains positional shift, critical for anatomy, contrasting with mechanical or combined causes.