ATI RN
Urinary System Exam Questions Questions
Question 1 of 5
Bicarbonate is maximally absorbed in:
Correct Answer: A
Rationale: PCT reabsorbs ~80-90% of filtered bicarbonate not DCT, collecting duct, or ascending loop (no HCO3- transport). This specifies primary reabsorption site, critical for acid-base, contrasting with later segments.
Question 2 of 5
Which of the following is the correct sequence in which urine flows through the kidney toward the urinary bladder?
Correct Answer: B
Rationale: Urine flows: papillary duct → minor calyx → major calyx → renal pelvis → ureter not other sequences. This orders drainage, key for urine path, contrasting with misordered flows.
Question 3 of 5
The location of the kidneys in relationship to the peritoneal lining of the abdominal cavity is referred to as
Correct Answer: A
Rationale: Kidneys are retroperitoneal (behind peritoneum) not retroabdominal, posterior (general), or dorsal. This positions kidneys, key for surgery, contrasting with vague terms.
Question 4 of 5
The renal pyramids are separated from each other by extensions of the renal cortex called ________.
Correct Answer: D
Rationale: Renal columns (cortex extensions) separate pyramids not medulla, calyces, or 'medullary cortices.' This defines anatomy, key for structure, contrasting with incorrect terms.
Question 5 of 5
The fine tuning of water recovery or disposal occurs in ________.
Correct Answer: B
Rationale: Collecting ducts fine-tune water via ADH not PCT (bulk), ascending loop (impermeable), or DCT (less). This locates regulation, critical for urine concentration, contrasting with bulk sites.