ATI RN
Urinary System Exam Questions Questions
Question 1 of 5
Regarding Renal handling of water:
Correct Answer: B
Rationale: Water moves by osmotic diffusion throughout nephron (solute-driven) not PCT-only or ADH-controlled obligatory (PCT inherent). This defines water handling, critical for urine formation, contrasting with restricted or hormonal errors.
Question 2 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 3 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 4 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.
Question 5 of 5
If there were no aquaporin channels in the collecting duct, ________.
Correct Answer: D
Rationale: No aquaporins in collecting ducts prevent water reabsorption, causing dehydration not edema, Na+ retention, or vitamin loss. This links ADH to water, critical for balance, contrasting with retention.