practice

practice - 1. Tubular ultrafiltrate enters the collecting...

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1. Tubular ultrafiltrate enters the collecting duct from the: A. glomerulus. B. loop of Henle. C. *distal convoluted tubule. D. proximal convoluted tubule. 2. Glomerular capillary permeability is increased because of: A. *fenestrated vessel wall. B. hypertonic medullary interstitial fluid. C. hypertensive blood flow in vasa recta. D. interdigital primary and secondary pedicels. 3. The average glomerular filtration rate is equal to A. *180 L/day. B. 5.5 mL/min. C. 100 mmHg/hour. D. 8 mg/hour. 4. The concentration of renal filtrate is highest in the: A. proximal convoluted tubule. B. *base of the Loop of Henle. C. distal convoluted tubule. D. cortical portion of the collecting duct. 5. Which of the following does NOT normally appear in the glomerular filtrate? A. Glucose. B. *Plasma protein. C. Urea. D. Bicarbonate ion. 6. If a drug could inhibit all active transport processes in the nephron, the urine would ultimately become: A. *isotonic. B. hypotonic. C. hypertonic. D. hyperbaric 7. Inhibition of the functions of the descending limb of the loop of Henle would: A. *decrease water reabsorption. B. increase water reabsorption. C. increase Na + reasbsorption. D. decrease Na + reabsorption. 1
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8. Active transport of Na + occurs in the a. proximal tubule b . ascending limb of the loop of Henle c . descending limb of the loop of Henle d . distal tubule A. B. C. D. 9. Which of the following statements is TRUE? A. As the tubular ultrafiltrate moves through the ascending limb of the loop of Henle, the osmolality of the filtrate increases. B. The descending limb of the loop of Henle is impermeable to water. C. *The vasa recta have the net effect of concentrating solutes in the interstitial fluid of the renal medulla D. The medullary collecting duct is impermeable to urea. 10.
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practice - 1. Tubular ultrafiltrate enters the collecting...

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