ATI RN
Urinary System Multiple Choice Questions Questions
Question 1 of 5
Peristaltic contractions occur in the ________.
Correct Answer: C
Rationale: Ureters use peristalsis to move urine not urethra (voiding), bladder (detrusor), or all. This specifies transport, critical for flow, contrasting with voiding structures.
Question 2 of 5
Renin is released in response to ________.
Correct Answer: B
Rationale: Decreased BP triggers renin not increased BP, ACE (downstream), or diuretics (effect). This initiates RAAS, key for pressure regulation, contrasting with high-pressure states.
Question 3 of 5
The primary function of the ascending loop of Henle in the kidney is?
Correct Answer: A
Rationale: Ascending loop actively reabsorbs Na+ (Na+/K+/2Cl- pump) not Cl- alone, or passive K+/urea. This specifies diluting role, key for concentration gradient, contrasting with passive processes.
Question 4 of 5
Which of the following is not considered a component of kidney stones?
Correct Answer: D
Rationale: Kidney stones include calcium phosphate, oxalate, and uric acid not HCO3 (bicarbonate, soluble). This distinguishes stone composition, key for treatment, contrasting with non-stone solutes.
Question 5 of 5
Kidneys in the human body extend from this level
Correct Answer: D
Rationale: Kidneys span T12 to L3 not higher thoracic or extended lumbar. This specifies position, vital for radiology, contrasting with incorrect spans.