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Anoxia is an extreme form of hypoxia (low levels of oxygen in the blood) in which there is a complete lack of oxygen supply to the body as a whole or to a specific organ or tissue region. Anoxia can result from inadequate amounts of oxygen in the air, such as at high altitudes, from an inability of your blood to load and carry oxygen to tissues and organs, from the inability of the heart to pump and distribute the oxygenated blood adequately, or from respiratory failure that prevents the ... Anoxia can result from a number of conditions including cardiac arrest, carbon monoxide poisoning, stroke, brain injury, and complications due to anesthesia. It is thought that cells exposed to anoxia release glutamate. The CA1 cells of the hippocampus contain high concentrations of glutamate and are particularly vulnerable to subnormal oxygenation levels. Therefore, it appears that the action of glutamate on these cells is the putative mechanism mediating cell death in this region of the ... Anoxia means a total depletion in the level of oxygen, an extreme form of hypoxia or "low oxygen". The terms anoxia and hypoxia are used in various contexts: Anoxia is primarily caused by an inadequate supply of oxygenated blood to the organs and tissues. This condition is a medical emergency that requires immediate treatment because insufficient oxygen can damage the brain and vital organs within minutes.
