ATI RN
Urinary System Exam Questions Questions
Question 1 of 5
Which hormone increases sodium retention and blood pressure?
Correct Answer: A
Rationale: Aldosterone retains Na+, raising BP not insulin (glucose), thyroxine (metabolism), or oxytocin (labor). This specifies RAAS role, key for volume control, contrasting with unrelated hormones.
Question 2 of 5
Distal convoluted tubules is under the control of:
Correct Answer: D
Rationale: DCT responds to aldosterone (Na+/K+), ANF (Na+ excretion), and ADH (water) all apply. This encompasses hormonal regulation, key for electrolyte/water balance, contrasting with single or no control.
Question 3 of 5
Collecting duct
Correct Answer: D
Rationale: Collecting ducts have principal (light) and intercalated (dark) cells, respond to ADH, and concentrate urine all true. This fully describes their role, key for water balance, contrasting with partial traits.
Question 4 of 5
Blood in the arcuate arteries flows next into the
Correct Answer: B
Rationale: Arcuate arteries feed interlobular arteries not afferent (next), interlobar (prior), or glomerular (misnomer). This orders renal blood flow, critical for perfusion, contrasting with missteps.
Question 5 of 5
The membranous urethra is lined with
Correct Answer: B
Rationale: Membranous urethra has stratified columnar epithelium not squamous (penile), transitional (bladder), or pseudostratified. This defines urethral histology, critical for anatomy, contrasting with adjacent regions.