ATI RN
Questions About The Urinary System Questions
Question 1 of 5
Aldosterone regulates:
Correct Answer: A
Rationale: Aldosterone retains Na+ and excretes K+ not glucose (insulin), oxygen (lungs), or protein (liver). This specifies electrolyte control, critical for blood pressure, contrasting with unrelated functions.
Question 2 of 5
The main nitrogenous waste excreted in urine is:
Correct Answer: B
Rationale: Urea is the primary nitrogenous waste not glucose (reabsorbed), hemoglobin (RBCs), or protein (filtered). This identifies excretion target, critical for nitrogen balance, contrasting with reabsorbed/blood components.
Question 3 of 5
Collections of cortical tissue found between the medullary pyramids are called
Correct Answer: B
Rationale: Renal columns of Bertin are cortical tissue between pyramids not medullary rays (cortex to medulla), interlobular cortex (misnomer), or none. This defines cortical extensions, critical for kidney structure, contrasting with medullary or vague terms.
Question 4 of 5
The distal convoluted tubules have
Correct Answer: D
Rationale: DCT has faint acidophilic cytoplasm, basal infoldings, and large mitochondria all true. This describes DCT histology, critical for ion transport, contrasting with partial traits.
Question 5 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.