ATI RN
Questions About The Urinary System Questions
Question 1 of 5
The non-glomerular blood circulation of the kidney includes all of the following EXCEPT
Correct Answer: C
Rationale: Peritubular capillaries are glomerular (efferent) not non-glomerular like capsular, terminal, or recta vera. This corrects circulation type, critical for reabsorption, contrasting with post-glomerular inclusion.
Question 2 of 5
The lateral end of the pronephric tubules opens in:
Correct Answer: D
Rationale: Lateral ends of pronephric tubules connect to the intraembryonic coelomic cavity not amniotic, yolk sac, extraembryonic coelom, or duct (medial). This reflects their nephrotome origin, key for early filtration, contrasting with medial drainage or external spaces.
Question 3 of 5
The polycystic kidney is due to failure of communication between:
Correct Answer: C
Rationale: Polycystic kidney results from failed DCT-collecting tubule fusion not PCT-DCT, Bowman's-PCT, or calyceal issues; cysts form at this junction. This pinpoints defect, critical for pathology, contrasting with other nephron stages.
Question 4 of 5
The urachus extends between:
Correct Answer: C
Rationale: Urachus (allantois remnant) connects umbilicus to bladder apex not neck, base, or penis; 'abus' likely OCR error for apex. This defines urachal path, critical for anomalies, contrasting with misplacements.
Question 5 of 5
The kidneys produce renin. Explain the function of renin.
Correct Answer: A
Rationale: Renin activates angiotensin cleaves angiotensinogen to angiotensin I (e.g., JGA response to low BP), triggering RAAS. Vitamin D activation is kidney's calcitriol role not renin. RBC stimulation is erythropoietin not renin. Vasoconstriction is angiotensin II downstream. Renin's angiotensin initiation distinguishes it, critical for BP regulation, unlike unrelated or subsequent effects.