Hypoxia
From Wikipedia, the free encyclopedia
Hypoxia literally means "deficient 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 hypoxia, a condition in high altitudes such as mountains where the reduced partial pressure of oxygen available leads to 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.
[edit] 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.
