ATI RN
Multiple Choice Questions On Urinary System Questions
Question 1 of 5
The tube that carries urine out of the body is the:
Correct Answer: B
Rationale: The urethra expels urine from the body not ureter (kidney to bladder), nephron, or loop (kidney). This defines excretory channel, critical for elimination, contrasting with internal structures.
Question 2 of 5
The main function of the collecting ducts in the nephron is to:
Correct Answer: B
Rationale: Collecting ducts transport concentrated urine to pelvis not filter (glomerulus), reabsorb glucose (PCT), or digest (gut). This specifies final conduit, critical for urine delivery, contrasting with earlier roles.
Question 3 of 5
The cells of the visceral layer of renal corpuscle are called:
Correct Answer: B
Rationale: Podocytes form the visceral layer of the renal corpuscle not mesangial (support), extra-glomerular (lacis), or JG cells (arterioles). This identifies filtration cells, critical for GFR, contrasting with support/control cells.
Question 4 of 5
The glomerular basement membrane
Correct Answer: D
Rationale: GBM fuses capillary/podocyte laminae, is ~320-340 nm thick, and is renewed by mesangial cells all true. This fully describes GBM, critical for filtration barrier, contrasting with partial features.
Question 5 of 5
The thin segment of loop of Henle can be distinguished from the vasa recta by all of the following EXCEPT
Correct Answer: A
Rationale: Thin segment (squamous epithelium) and vasa recta (endothelium) differ in content (urine vs. blood), wall thickness, and nuclei not epithelium type (both squamous). This corrects distinction, key for histology, contrasting with other differences.