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Author Question: A 63-year-old woman has begun a diet that purports to minimize the quantity and effects of free ... (Read 83 times)

Garrulous

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A 63-year-old woman has begun a diet that purports to minimize the quantity and effects of free radicals in her body. What physiological processes could best underlie her care provider's teaching about her new diet?
 
  A)
  Free radicals act as direct mediators in the inflammatory process.
  B)
  Free radicals inhibit the inflammatory response, limiting preadaptive response to infection.
  C)
  Free radicals increase cytokine expression and adhesion molecule levels, resulting in increased inflammation.
  D)
  Free radicals contribute to atherosclerosis and decreased immune response.

Question 2

Which of the following phenomena would be least likely to result in activation of the complement system?
 
  A)
  Recognition of an antibody bound to the surface of a microbe
  B)
  Increase in tissue blood flow and capillary permeability, so fluids/proteins can leak into the area
  C)
  Activation of toll-like receptors (TLRs) on complement proteins
  D)
  Direct recognition of microbial proteins



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poopface

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Answer to Question 1

Ans:
C

Feedback:

Free radicals are thought to bring about an inappropriate inflammatory response by increasing cytokines and numbers of adhesion molecule. They are not direct mediators of inflammation and are not associated with decreased immune response but rather inappropriate inflammation. Free radicals are not associated with inhibition of the inflammatory response.

Answer to Question 2

Ans:
C

Feedback:

Toll-like receptors are not associated with the complement system. The complement system may be activated by antibody recognition, mannose binding, or microbial protein recognition.




Garrulous

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Reply 2 on: Jun 25, 2018
:D TYSM


shailee

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Reply 3 on: Yesterday
Gracias!

 

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