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Physiologic Anatomy of the Kidneys

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Questions and Answers

Which vessels lead to the glomerular capillaries for urine formation?

Arcuate arteries

Peritubular capillaries

Interlobar arteries

Afferent arterioles (correct)

What is the approximate percentage of renal blood flow in relation to cardiac output?

35%

10%

22% (correct)

50%

Why are there two capillary beds, the glomerular and peritubular capillaries, in the renal circulation?

To provide a backup system for blood filtration

To increase blood pressure in the kidneys

To separate fluid filtration from fluid reabsorption (correct)

To reduce hydrostatic pressure in the glomerular capillaries

What is the function of the efferent arterioles in the kidney's circulation?

Lead to the peritubular capillaries Signup and view all the answers

How does the number of nephrons change in the human kidney with age?

Decreases about 10% every 10 years Signup and view all the answers

What is the function of the hilum in the kidney?

It is where the renal artery and vein pass through Signup and view all the answers

If a kidney is bisected from top to bottom, what regions can be visualized?

Outer cortex and inner medulla Signup and view all the answers

What is the function of the papilla in the kidney?

Collects urine from the tubules of each papilla Signup and view all the answers

What structures divide into minor calyces in the kidney?

Major calyces Signup and view all the answers

Where does the renal pelvis in the kidney extend downward into?

Ureter Signup and view all the answers