ATI RN
Urinary System Questions Questions
Question 1 of 5
The juxta-glomerular apparatus is characterized by all the following EXCEPT that it
Correct Answer: B
Rationale: JGA (vascular pole, JG cells in afferent arterioles, macula densa) excludes intra-glomerular mesangial cells not part of JGA. This corrects JGA scope, critical for RAAS, contrasting with glomerular cells.
Question 2 of 5
Collections of cortical tissues found between the medullary pyramids are called
Correct Answer: C
Rationale: Columns of Bertin are cortical tissue between pyramids not rays (cortex-medulla), interlobular (vague), or sinus (cavity). This repeats Q4, key for anatomy, contrasting with other terms.
Question 3 of 5
The medulla of the kidney
Correct Answer: A
Rationale: Assuming Q38 completes with options (e.g., medulla vs. cortex), medulla is correct for its role (concentration) not cortex, vas deferens, or rectum. This assumes intent, key for structure, contrasting with non-renal options.
Question 4 of 5
Peritubular capillary network of the kidney arises from
Correct Answer: B
Rationale: Peritubular capillaries arise from efferent arterioles not afferent, intralobular (misnomer), or interlobular. This specifies post-glomerular flow, critical for reabsorption, contrasting with pre-glomerular sources.
Question 5 of 5
Kidney produces urine by:
Correct Answer: D
Rationale: Urine production involves ultrafiltration (glomerulus), reabsorption (tubules), and secretion (tubules) all apply. Ultrafiltration forms filtrate, reabsorption recovers water/nutrients, and secretion adds waste, collectively shaping urine. Excluding any step (secretion, ultrafiltration, or reabsorption) ignores a key process, making 'all' the accurate choice. This encompasses renal function, vital for waste excretion, contrasting with single-process views.