ATI RN
Urinary System Exam Questions Questions
Question 1 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 2 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 3 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.
Question 4 of 5
Afferent arterioles
Correct Answer: D
Rationale: Afferent arterioles arise from interlobular (from arcuate), supply glomerulus, and have JG cells all true. This fully describes their role, key for filtration, contrasting with partial traits.
Question 5 of 5
Immediately prior to entering loop of Henle a drop of urine would be found in:
Correct Answer: C
Rationale: Urine (filtrate) flows from the proximal convoluted tubule (PCT) into the loop of Henle not minor calyx (collecting system), distal convoluted tubule (post-loop), or papillary duct (end of collecting duct). The PCT reabsorbs most filtrate before it enters the loop for concentration, making it the correct pre-loop location. This traces nephron flow, critical for understanding urine formation, contrasting with post-loop or collecting structures.