A client has experienced a myocardial infarction with accompanying necrosis of cardiac muscle, a permanent tissue. What are the ramifications of the fact that cardiac muscle is a permanent tissue?
A) The cardiac muscle cells will remain perpetually in the G1 stage of mitosis.
B) Regeneration of the client's cardiac muscle will be exceptionally slow.
C) The necrotic cells will be replaced with muscle cells that have limited metabolism.
D) The cells will not proliferate and will be replaced with scar tissue.
Ans: D
Feedback:
The cells in permanent tissues do not proliferate and, if destroyed, are replaced with fibrous scar tissue. The G0 stage of mitosis, not the G1 stage, involves quiescence.
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