ATI RN
Questions On The Urinary System Questions
Question 1 of 5
The micturition reflex center is located in the:
Correct Answer: C
Rationale: Micturition reflex centers in sacral cord (S2-S4) not kidney, cerebrum, bladder, or hypothalamus. This locates reflex control, key for voiding, contrasting with higher/organ sites.
Question 2 of 5
The right kidney is slightly lower because ________.
Correct Answer: A
Rationale: Liver displaces right kidney lower not heart (left), size, or ribs (protection irrelevant). This explains asymmetry, key for anatomy, contrasting with other causes.
Question 3 of 5
What signal causes the heart to secrete atrial natriuretic hormone?
Correct Answer: A
Rationale: Increased BP triggers ANP release not decreased BP or Na+ changes alone. This links pressure to natriuresis, critical for volume control, contrasting with low-pressure signals.
Question 4 of 5
Juxtaglomerular cells combine with _______ cells to form the juxtaglomerular apparatus in the kidney.
Correct Answer: A
Rationale: JG cells and macula densa form the JGA not pelvis, nephron (whole), or sinus. This specifies RAAS structure, critical for pressure, contrasting with broader terms.
Question 5 of 5
The primary function of the descending loop of Henle in the kidney is?
Correct Answer: B
Rationale: Descending loop reabsorbs water osmotically not Na+, H+, or K+ (ascending/DCT). This specifies concentrating role, critical for gradient, contrasting with ion processes.