ATI RN
Questions About The Urinary System Questions
Question 1 of 5
After the renal artery divides in the hilum, blood circulating to the kidney flows through the
Correct Answer: A
Rationale: Blood flows: interlobar → arcuate → interlobular → afferent not other sequences. This orders renal circulation, critical for perfusion, contrasting with misordered paths.
Question 2 of 5
The function of collecting tubules
Correct Answer: B
Rationale: Collecting tubules reabsorb ~9% water (ADH-dependent) not K+ (DCT), 80% (PCT), or Na+ (earlier). This specifies water role, key for concentration, contrasting with earlier reabsorption.
Question 3 of 5
The non-glomerular blood circulation of the kidney includes all of the following EXCEPT
Correct Answer: C
Rationale: Peritubular capillaries are glomerular (efferent) not non-glomerular like capsular, terminal, or recta vera. This corrects circulation type, critical for reabsorption, contrasting with post-glomerular inclusion.
Question 4 of 5
Structure typically seen at the border between the renal cortex and medulla include:
Correct Answer: D
Rationale: Arcuate arteries/veins mark cortex-medulla border not vasa recta (medulla), stellate (cortex), peritubular (cortex), or interlobular (cortex). This repeats Q32, key for circulation, contrasting with other locations.
Question 5 of 5
The lateral end of the pronephric tubules opens in:
Correct Answer: D
Rationale: Lateral ends of pronephric tubules connect to the intraembryonic coelomic cavity not amniotic, yolk sac, extraembryonic coelom, or duct (medial). This reflects their nephrotome origin, key for early filtration, contrasting with medial drainage or external spaces.