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Biology 12 Online
OpenStudy (anonymous):

. There are some cells that can not go through Mitosis. In other words, an organism can not make any new ones when the cells die. Human nerve and muscle cells are examples. Explain how this might affect a person who has a heart attack and part of their heart muscle is damaged?

OpenStudy (beccaboo333):

Heart attacks or Myocardial infarctions occur when blood supply to the heart is interrupted by factors such as thrombosis, embolism...the blood carries the oxygen needed by the myocardial (innermost layer of heart muscle) cells to perform the functions of the heart. The lack o oxygen leads to cell death or necrosis. and since nerve and muscle cells don't have the ability to renew, they just die. Not like when you get wounded and your skin repairs them....

OpenStudy (shrutipande9):

heart muscles damaged and no regenration....so function of that particular part not completed....for eg take the atrial muscle...if they are damaged then they cannot pump blood in vetricles.

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