Of the following situations, which one would be an example of a ...

[809779]

Of the following situations, which one would be an example of a maladaptive cellular change?
 
  A)
  An 18-year-old body builder who has developed extremely large pectoral muscles following years of weight lifting
  B)
  A 31-year-old marathon runner who has developed hypertrophied myocardial cells
  C)
  A 54-year-old female who has developed ovarian atrophy following loss of estrogen stimulation during menopause
  D)
  A 44-year-old male with a 60-pack-per year smoking history who was diagnosed with a histological grade 3 lung cancer

Question 2

A 6-year-old child cuts his leg while playing outside. An inflammatory process begins the healing process by moving leukocytes and platelets through the endothelial lining of blood vessels.
 
  This process occurs because of which extracellular tissue component?
  A)
  Extracellular matrix
  B)
  Glycosaminoglycans
  C)
  Selectins
  D)
  Cadherins

[heinisk01]

Answer to Question 1

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Answer to Question 2

Ans:
C

Feedback:

Selectins are found on activated endothelial cells of blood vessels, on leukocytes, and on platelets. They, together with integrins and immunoglobulins, participate in leukocyte movement through the endothelial lining of blood vessels during inflammation. Cadherins link parts of the internal cytoskeleton (actin and catenins) with extracellular cadherins of an adjacent cell. Glycosaminoglycans are one of the components of the extracellular matrix.