The nursing instructor explains the difference between normal cells and benign tumor cells. What information does the instructor provide about these cells?
a. Benign tumors grow through invasion of other tissue.
b. Benign tumors have lost their cellular regulation from contact inhibition.
c. Growing in the wrong place or time is typical of benign tumors.
d. The loss of characteristics of the parent cells is called anaplasia.
ANS: C
Benign tumors are basically normal cells growing in the wrong place or at the wrong time. Benign cells grow through hyperplasia, not invasion. Benign tumor cells retain contact inhibition. Anaplasia is a characteristic of cancer cells.
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