Histotoxic hypoxia

Histotoxic hypoxia is the inability of cells to take up or utilize oxygen from the bloodstream, despite physiologically normal delivery of oxygen to such cells and tissues. Histotoxic hypoxia results from tissue poisoning, such as that caused by alcohol, narcotics, cyanide(which acts by inhibiting cytochrome oxidase), and certain other poisons.

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It uses material from the http://en.wikipedia.org/wiki/Histotoxic+hypoxia Wikipedia article Histotoxic hypoxia.