Hypoxia
5768783
225313420
2008-07-13T01:16:23Z
HIF-1A
6175635
{{Infobox_Disease
| Name = Hypoxia
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{{wiktionary|hypoxia}}
{{redirect|Anoxic|the topic in geology and paleobiology|Anoxic event}}
'''Hypoxia''' literally means "a deficiency in oxygen." It can refer to:
* [[Hypoxia (medical)]], a shortage of oxygen in the body. ''Hypoxaemia'' is the reduction of oxygen specifically in the blood; ''anoxia'' is when there is no oxygen available at all.
** Environmental [[hypobaric]] hypoxia, a condition at [[high altitude]]s such as mountains where the reduced partial pressure of oxygen results in hypoxia.
** [[Ischemia]], a restriction in blood supply (and therefore oxygen supply) to an organ or section of the body, generally due to constriction or blocking of blood vessels.
* [[Hypoxia (environmental)]] or oxygen depletion, a reduced concentration of dissolved oxygen in a water body leading to stress and death in aquatic organisms.
** [[Dead zone (ecology)]], or hypoxic zones, hypoxic areas in the world's oceans.
** [[Anoxic sea water]], a condition of abnormally low levels of oxygen in the sea.
** [[Oxygen minimum zone]], the depth in the sea at which the dissolved oxygen level is lowest, or most hypoxic.
===In popular culture===
* '''Hypoxia''' is a song on the album ''[[Spheres 2]]'' by [[Delerium]]
* '''[[Hypoxia (band)|Hypoxia]]''' is a [[death metal]] band in [[Santa Rosa]], [[California]]
==See also==
* [[Oxygen saturation]], a relative measure of the oxygen dissolved or carried in a medium; a measure of the severity of hypoxic conditions.
* [[Oxygen toxicity]] (hyperoxia), the opposite condition of hypoxia, an excess of oxygen in body tissues.
* [[Time of Useful Consciousness]], a measure of how quickly hypoxia renders a person incapable of normal thought.
* [[Respiratory Acidosis]], a decrease in physiological pH due to hypoventilation or decrease in gas exchange by alveoli
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