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Physiology Practice Test: The Urinary System - Renal Function
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Physiology Practice Test: The Urinary System - Renal Function
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25 Questions

1. Solutes that enter the lumen of the renal tubules are excreted unless they are ________.
2. What type of nephrons are located within the outer region of the kidney and comprise nearly 80% of the nephrons?
3. Which of the following is FALSE concerning renal handling of glucose?
4. If a substance is neither reabsorbed nor secreted, then its excretion rate is equal to the ________.
5. What condition(s) must exist for a solute to be passively reabsorbed from the renal tubules?
6. Blood leaves the ________ and enters the glomerulus.
7. What is the normal glomerular filtration rate?
8. Which of the following pressures across the glomerular capillaries approaches zero?
9. What is the brush border?
10. Within the kidneys, what membrane has microvillli?
11. Where do the collecting ducts of the renal tubules drain?
12. What capillaries come off of the efferent arterioles associated with juxtamedullary nephrons?
13. Which of the forces across the glomerular capillaries tends to increase from the afferent to the efferent arteriole ends?
14. Given that GFR is 125 mL/min and the clearance of substance Y is 200 mL/min, which of the following MUST be true of the renal handling of substance Y.
15. To voluntarily control urination, the ________ nervous system innervates the ________.
16. The peritubular capillaries and vasa recta drain into hat veins?
17. The juxtaglomerular apparatus describes the unique region of the nephron where ________.
18. Calculate renal clearance of X given the following information: GFR = 100 mL/min, urine flow rate = 5 mL/min, plasma concentration of X = 10 mg/mL, urine concentration of X = 50 mg/mL.
19. Where does blood leaving the glomerulus go to next?
20. Which of the following equations is correct for calculating the filtered load?
21. Which of the following is the correct order of blood supply to the kidneys?
22. Stretching of the bladder reflexively causes all of the following EXCEPT ________.
23. The excretion of water and solutes in urine has a significant impact on the volume and composition of fluids in the body.
24. The amount of a substance excreted from the kidneys is calculated by which of the following equations?
25. Substance X is freely filtered at the glomerulus. 3 mmole X is filtered, 2 mmole X is reabsorbed, and 2 mmole X is secreted per minute. How much X is excreted per minute?

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