Which of the following correctly traces blood flow from the renal artery into the renal cortex?
Arcuate a. → interlobar a. → afferent arteriole → cortical radiate (interlobular) a.
Interlobar a. → cortical radiate (interlobular) a. → segmental a. → arcuate a.
Segmental a. → interlobar a. → arcuate a. → cortical radiate (interlobular) a.
Afferent arteriole → cortical radiate(interlobular) a. → arcuate a. → interlobar a.
Segmental a. → arcuate a. → interlobar a. → cortical radiate (interlobular) a.
The Correct Answer is C
A. Arcuate a. → interlobar a. → afferent arteriole → cortical radiate (interlobular) a.: This is an incorrect sequence-interlobar arteries come before arcuate arteries.
B. Interlobar a. → cortical radiate (interlobular) a. → segmental a. → arcuate a.: Segmental arteries are more proximal, immediately after the renal artery.
C. Segmental a. → interlobar a. → arcuate a. → cortical radiate (interlobular) a.: This is the correct anatomical order of arterial blood flow: Renal a. → Segmental a. → Interlobar a. → Arcuate a. → Cortical radiate (interlobular) a. → Afferent arteriole
D. Afferent arteriole → cortical radiate (interlobular) a. → arcuate a. → interlobar a.: This is a reversed and incorrect sequence.
E. Segmental a. → arcuate a. → interlobar a. → cortical radiate (interlobular) a.: Arcuate arteries arise after interlobar arteries, not before.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Body’s water volume is high: When well-hydrated, ADH secretion is low, resulting in dilute (hypotonic) urine as the kidneys excrete excess water.
B. Body’s pH is low: This would affect acid-base balance, not urine tonicity directly.
C. Output of antidiuretic hormone is high: High ADH increases water reabsorption, leading to concentrated (hypertonic) urine.
D. Output of natriuretic peptides is high: These promote Na⁺ and water loss, but hypotonic urine isn't guaranteed.
E. Person is lost and deprived of drinking water: In dehydration, ADH increases, and urine becomes concentrated, not hypotonic.
Correct Answer is A
Explanation
A. Intrinsic factor: Intrinsic factor, secreted by parietal cells, is essential for vitamin B₁₂ absorption in the ileum. Vitamin B₁₂ is needed for RBC production and hemoglobin synthesis.
B. Gastric lipase: Gastric lipase breaks down lipids, not involved in hemoglobin production.
C. Pepsinogen: Pepsinogen is converted to pepsin, which digests proteins-not related to RBC or hemoglobin synthesis.
D. HCl: Hydrochloric acid helps activate enzymes and digest food, but does not directly influence hemoglobin production.
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