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hypoxia |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.07 sec. |
hypoxiaCondition in which tissues are starved of oxygen. The extreme is anoxia (absence of oxygen). There are four types: hypoxemic, from low blood oxygen content (e.g., in altitude sickness); anemic, from low blood oxygen-carrying capacity (e.g., in carbon monoxide poisoning); distributive, from low blood flow (e.g., generally in shock or locally in atherosclerosis); and histotoxic, from poisoning (e.g., with cyanide) that keeps cells from using oxygen. If not reversed quickly, hypoxia can lead to necrosis (tissue death), as in heart attack. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Size and performance of anoxic limestone drains to neutralize acidic mine drainage. However, if enough hydrogen sulfide accumulates in an oxygen-free, or anoxic, zone, the gas can abruptly rise and belch into the atmosphere, Kump says. Sixth, the reappearance of banded iron formations in the late Neoproterozoic has been genetically linked to global glaciation; the assumption is that anoxic seawaters form below a global cover of thick sea ice thereby enabling ferrous iron to remain in solution (Hoffman et al. |
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