ATI RN
Questions On The Urinary System Questions
Question 1 of 5
Urine is stored in the:
Correct Answer: C
Rationale: The bladder stores urine not kidney (production), ureter (transport), or urethra (exit). This identifies storage organ, key for micturition, contrasting with production/transport roles.
Question 2 of 5
Which condition is characterized by abnormally low urine output?
Correct Answer: A
Rationale: Oliguria is low output (<400 mL/day) not polyuria (excess), anuria (<50 mL), or glycosuria (glucose). This identifies reduced flow, key for renal assessment, contrasting with excess or unrelated terms.
Question 3 of 5
In the medulla of the kidney, the medullary collecting tubules coalesce to form:
Correct Answer: C
Rationale: Papillary ducts (ducts of Bellini) form from collecting tubules in the medulla, draining into calyces not area cribrosa (papilla tip), rays (cortex), or calyces (collecting). This specifies urine collection, key for excretion, contrasting with earlier structures.
Question 4 of 5
All of the following are TRUE about the juxta-glomerular cells EXCEPT
Correct Answer: B
Rationale: JG cells are in afferent arterioles not DCT (macula densa); other traits (smooth muscle, innervation, RER/Golgi) are true. This corrects location, key for renin secretion, contrasting with DCT misplacement.
Question 5 of 5
Mesangial cells are
Correct Answer: E
Rationale: Mesangial cells are pericytes, contract, have receptors (AII, ANF), and phagocytose all true. This comprehensively describes their role, critical for glomerular dynamics, contrasting with partial functions.