ATI RN
Urinary System Multiple Choice Questions Questions
Question 1 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 2 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 3 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 4 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.
Question 5 of 5
The male urethra is:
Correct Answer: D
Rationale: Male urethra has endodermal (vesicourethral, sinus) and ectodermal (glans) origins not just one or mesodermal alone; 'all' fits broadly. This reflects mixed lineage, critical for urethral development, contrasting with single-layer views.