ATI RN
Questions On The Urinary System Questions
Question 1 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.
Question 2 of 5
The arteriolar recta spuria arise from
Correct Answer: D
Rationale: Arteriola recta spuria (false) arise from efferent arterioles not interlobar, interlobular, or afferent. This specifies medullary supply, critical for countercurrent, contrasting with other origins.
Question 3 of 5
Ducts of Bellini
Correct Answer: D
Rationale: Ducts of Bellini are large (200-300 μm), columnar-lined, and empty at area cribrosa all true. This fully describes papillary ducts, key for urine delivery, contrasting with partial features.
Question 4 of 5
Filtrate in the distal convoluted tubule:
Correct Answer: A
Rationale: Filtrate in the distal convoluted tubule (DCT) has just exited the loop of Henle not pre-loop (PCT), pre-glomerulus (blood), or pre-PCT (glomerulus). The loop concentrates filtrate before DCT fine-tunes it, placing it post-loop in the nephron sequence. This clarifies filtrate progression, key for nephron function, contrasting with earlier stages.
Question 5 of 5
The mesonephric tubules in male gives:
Correct Answer: A
Rationale: In males, mesonephric tubules form vasa efferentia (testis to epididymis) not epididymis duct, vas deferens, ejaculatory duct (from mesonephric duct), or all. This specifies tubule fate, key for reproductive anatomy, contrasting with duct derivatives.