ATI RN
Urinary System Test Questions And Answers Questions
Question 1 of 5
The arterial supply of urinary bladder is derived from all of the following arteries EXCEPT:
Correct Answer: D
Rationale: Bladder supply includes superior/inferior vesical, middle rectal, and obturator not inferior rectal (anus). This corrects vascular anatomy, vital for pelvic surgery, contrasting with rectal supply.
Question 2 of 5
The apex of the renal pyramid is called the:
Correct Answer: C
Rationale: Renal papilla (pyramid apex) drains into calyces not calyx, pelvis, or ureter. This specifies medullary tip, key for collection, contrasting with collecting structures.
Question 3 of 5
Somatic motor neurons must be ________ to relax the external urethral sphincter to allow urination.
Correct Answer: A
Rationale: Stimulating somatic neurons relaxes the external sphincter (voluntary) not inhibiting (contracts). This defines micturition control, key for continence, contrasting with inhibition.
Question 4 of 5
Production of urine to modify plasma makeup is the result of ________.
Correct Answer: D
Rationale: Urine forms via filtration, reabsorption (absorption), and secretion all apply. This encompasses urine production, critical for homeostasis, contrasting with single processes.
Question 5 of 5
Which step in vitamin D production does the kidney perform?
Correct Answer: B
Rationale: Kidneys convert calcidiol to calcitriol (active) not cholecalciferol (liver), storage, or none. This defines renal role, critical for calcium, contrasting with hepatic steps.