Chapter 18: The Urinary System - Renal Function

14 Questions

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Chapter 18: The Urinary System - Renal Function

It’s easy to take the things we do every day for granted; for instance, using the bathroom is something we do all the time without much thought about what goes on in the background. Do you know as much as you should about the urinary system, particularly renal function? Let’s find out!


Questions and Answers
  • 1. 
    Which structure of the urinary system stores urine until its secreted?
    • A. 

      Kidneys

    • B. 

      Bladder

    • C. 

      Ureter

    • D. 

      Urethra

    • E. 

      Gallbladder

  • 2. 
    Which of the following is not one of the mechanisms by which a solute can be exchanged between the plasma and the renal tubules?
    • A. 

      Glomerular filtration

    • B. 

      Secretion

    • C. 

      Excretion

    • D. 

      Reabsorption

  • 3. 
    Most reabsorption of water and solutes occurs in the
    • A. 

      Proximal tubule

    • B. 

      Descending limb of the loop of henle

    • C. 

      Ascending limb of the loop of Henle

    • D. 

      Distal tubule

    • E. 

      Collecting duct

  • 4. 
    • A. 

      Glomerular filtration rate would increase because of increased glomerular capillary hydrostatic pressure.

    • B. 

      Glomerular filtration rate would decrease because of increased Bowman's capsule hydrostatic pressure.

    • C. 

      Glomerular filtration rate would not change because of autoregulation

    • D. 

      GLomerular filtration rate would not change because of activation of the sympathetic nervous system

  • 5. 
    Micturition occurs in response to
    • A. 

      Relaxation of the detrusor muscle

    • B. 

      Contraction of the internal and external urethral sphincters

    • C. 

      Activation of parasympathetic neurons to the bladder

    • D. 

      Activation of somatic motor neurons to the bladder

  • 6. 
    The (ureter / urethra) carries urine from the bladder to the outside of the body.
  • 7. 
    The (afferent / efferent) arteriole carries blood toward the glomerulus
  • 8. 
    The hydrostatic pressure in glomerular capillaries is (higher / lower) than that in most capillaries of the body.
  • 9. 
    The glomerular filtration rate tends to (increase / decrease) as the concentration of proteins in the plasma incrases.
  • 10. 
    Autonomic neurons regulate contraction of the (internal / external) urethral sphincter
  • 11. 
    The glomerular filtration pressure is synonymous with the hydrostatic pressure inside glomerular capillaries - T or False
  • 12. 
    Substances that are reabsorbed move into the (peritubular capillaries / tubule lumen).
  • 13. 
    An increase in the flow rate through the macula densa causes a(n) (increase / decrease) in the glomerular filtration rate.
  • 14. 
    Glucose reabsorption occurs primarily in the (proximal tubule / distal tubule)