Chapter 26 - The Urinary System

30 Questions | Total Attempts: 319

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Chapter 26 - The Urinary System

Questions from Wiley Self Test


Questions and Answers
  • 1. 
    The renal corpuscle consists of the ________ and _________.
    • A. 

      Glomerulus, glomerular (Bowman's) capsule

    • B. 

      Renal tubule, renal capsule

    • C. 

      Distal convoluted tubule, proximal convoluted tubule

    • D. 

      Renal vein, renal artery

  • 2. 
    Discharge from the urine bladder is called ___________.
    • A. 

      Waste

    • B. 

      Urine

    • C. 

      Micturition

    • D. 

      Metabolic wastes

  • 3. 
    The most superficial region of the internal kidney is the renal medulla.
    • A. 

      True

    • B. 

      False

  • 4. 
    When dilute urine is being formed, the osmolarity of the fluid in the tubular lumen increases as it flows down the descending limb of the loop of Henle, decreases as it flows up the ascending limb, and continues to decrease as it flows through the rest of the nephron and collecting duct.
    • A. 

      True

    • B. 

      False

  • 5. 
    Which of the following statements are correct?  (1) Glomerular filtration rate (GFR) is directly related to the pressures that determine net filtration pressure. (2) Angiotensis II and atrial natriurectic peptide help regulate GFR. (3) Mechanisms that regulate GFR work by adjusting blood flow into and out of the glomerulus and by altering the glomerular capillary surface area available for filtration. (4) GFR increases when blood flow into glomerular capillaries decreases. (5) Normally, GFR increases very little when systemic blood pressure rises.
    • A. 

      1, 2, 3

    • B. 

      2, 3, 4

    • C. 

      3, 4, 5

    • D. 

      1, 2, 3, 5

    • E. 

      2, 3, 4, 5

  • 6. 
    Which of the following hormones affect Na+, Cl-, Ca2+, and water reabsorption and K+ secretion by the renal tubules? (1) angiotensin II; (2) aldosterone; (3) ADH; (4) atrial natriuretic peptide; (5) thyroid hormone; (6) parathyroid hormone.
    • A. 

      1, 3, 5

    • B. 

      2, 3, 6

    • C. 

      2, 4, 5

    • D. 

      1, 2, 4, 5

    • E. 

      1, 2, 3, 4, 6

  • 7. 
    Which of the following are features of the renal corpuscle that enhance its filtering capacity? (1) large glomerular capillary surface area; (2) thick, selectively permeable filtration membrane; (3) high capsular hydrostatic pressure; (4) high glomerular capillary pressure; (5) mesangial cells regulating the filtering surface area.
    • A. 

      1, 2, 3

    • B. 

      2, 4, 5

    • C. 

      1, 4, 5

    • D. 

      2, 3, 4

    • E. 

      2, 3, 5

  • 8. 
    Given the following values, calculate the net filtration pressure: (1) glomerular blood hydrostatic pressure = 40 mmHg, (2) capsular hydrostatic pressure = 10 mmHg, (3) blood colloid osmotic pressure = 30 mmHg.
    • A. 

      -20 mmHg

    • B. 

      0 mmHg

    • C. 

      20 mmHg

    • D. 

      60 mmHg

    • E. 

      80 mmHg

  • 9. 
    The micturition reflex (1) is initiated by stretch receptors in the ureters; (2) relies on parasympathetic impulses from the micturition center in S2 and S3; (3) results in contraction of the detrusor muscle; (4) results in contraction of the internal urethral sphincter muscle; (5) inhibits motor neurons in the external urethral sphincter
    • A. 

      1, 2, 3, 4, 5

    • B. 

      1, 3, 4

    • C. 

      2, 3, 4, 5

    • D. 

      2, 5

    • E. 

      2, 3, 5

  • 10. 
    Which of the following are mechanisms that control GFR? (1) renal autoregulation; (2) neural regulation; (3) hormonal regulation; (4) chemical regulation of ions; (5) presence or absence of a transporter.
    • A. 

      1, 2, 3

    • B. 

      2, 3, 4

    • C. 

      3, 4, 5

    • D. 

      1, 3, 5

    • E. 

      1, 3, 4

  • 11. 
    Cells in the last portion of the distal convuluted tubule and in the collecting ducts; regulated by ADH and aldosterone.  Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 12. 
    Capillary network lying in the glomerular capsule and functioning in filtration.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 13. 
    The functional unit of the kidney.  Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 14. 
    Drains into a collecting duct.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 15. 
    Combined glomerulus and glomerula capsule; where plasma is filtered.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 16. 
    The visceral layer of the glomerular capsule consisting of modified simple squamous epithelial cells.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 17. 
    Cells of the final portion of the ascending limb of the loop of Henle that make contact with the afferent arteriole.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 18. 
    Site of obligatory water reabsorption.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 19. 
    Pores in the glomerular endothelial cells that allow filtration of blood solutes but not blood cells and platelets.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 20. 
    Can secrete H+ against a concentration gradient.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 21. 
    Modified smooth muscle cells in the wall of the afferent arteriole.Enter choice #1-11 without parenthesis or spaces.  (1) podocytes; (2) glomerulus; (3) renal corpuscle; (4) proximal convoluted tubule; (5) distal convoluted tubule; (6) juxtaglomerular cells; (7) macula densa; (8) principal cells; (9) intercalated cells; (10) nephron; (11) fenestrations
  • 22. 
    Membrane proteins that function as water channels.  Enter choice #1-9 without parenthesis or spaces.  (1) angiotensin II; (2) atrial natriuretic peptide; (3) Na+ symporters; (4) Na+/H+ antiporters; (5) aquaporins; (6) aldosterone; (7) ADH; (8) renin; (9) parathyroid hormone
  • 23. 
    A secondary active transport process that achieves Na+ reabsorption, returns filtered HCO3- and water to the peritubular capillaries, and secretes H+.Enter choice #1-9 without parenthesis or spaces.  (1) angiotensin II; (2) atrial natriuretic peptide; (3) Na+ symporters; (4) Na+/H+ antiporters; (5) aquaporins; (6) aldosterone; (7) ADH; (8) renin; (9) parathyroid hormone
  • 24. 
    Stimulates principal cells to secrete more K+ into tubular fluid and absorb more Na+ and Cl- into tubular fluid.Enter choice #1-9 without parenthesis or spaces.  (1) angiotensin II; (2) atrial natriuretic peptide; (3) Na+ symporters; (4) Na+/H+ antiporters; (5) aquaporins; (6) aldosterone; (7) ADH; (8) renin; (9) parathyroid hormone
  • 25. 
    Enzyme secreted by juxtaglomerular cells.Enter choice #1-9 without parenthesis or spaces.  (1) angiotensin II; (2) atrial natriuretic peptide; (3) Na+ symporters; (4) Na+/H+ antiporters; (5) aquaporins; (6) aldosterone; (7) ADH; (8) renin; (9) parathyroid hormone
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