anoxia
Quick Summary
Anoxia is a severe form of hypoxia, a condition where body tissues are starved of oxygen. In its most extreme state, anoxia signifies the complete absence of oxygen. This can occur in the body, leading to permanent damage, or in bodies of water, where it is deadly to aquatic life and initiates distinct microbial and geochemical reactions.12
There are several types of hypoxia:
* Hypoxemic: Low oxygen pressure in the blood due to factors like high altitude or lung issues.1
* Anemic: Insufficient functional hemoglobin to carry oxygen, often due to anemia or carbon monoxide poisoning.1
* Stagnant: Reduced or uneven blood flow to tissues, caused by heart disease, shock, or constricted blood vessels.1
* Histotoxic: Tissues are unable to utilize oxygen, even if blood levels are normal, due to cellular poisoning from substances like cyanide or alcohol.1
Asphyxia is a broader term for respiratory failure due to lack of oxygen, which can lead to unconsciousness and death.3
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- coma
…contrast, lack of oxygen (anoxia) may result in a coma that lasts for several weeks and is often fatal. Stroke, a rupture or blockage of vessels supplying blood to the brain, can cause sudden loss of consciousness in some patients, while comas caused by metabolic abnormalities or cerebral tumours…
Read More…contrast, lack of oxygen (anoxia) may result in a coma that lasts for several weeks and is often fatal. Stroke, a rupture or blockage of vessels supplying blood to the brain, can cause sudden loss of consciousness in some patients, while comas caused by metabolic abnormalities or cerebral tumours…
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Devonian extinctions…periods of widespread hypoxic or anoxic sedimentation (that is, sedimentary events occurred that indicated little free oxygen or no oxygen at all was dissolved in Devonian seas). Some of these are known to be periods of significant extinction, and all are associated with some faunal anomaly in marine strata. These…
Read More…periods of widespread hypoxic or anoxic sedimentation (that is, sedimentary events occurred that indicated little free oxygen or no oxygen at all was dissolved in Devonian seas). Some of these are known to be periods of significant extinction, and all are associated with some faunal anomaly in marine strata. These…
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ear diseaseCongenital nerve deafness…result from insufficient oxygen (anoxia) during a difficult and prolonged delivery or from the condition known as kernicterus, in which the baby becomes jaundiced because of incompatibility between its blood and that of the mother. In a few cases congenital nerve deafness is an inherited failure of the cochlea…
Read More…result from insufficient oxygen (anoxia) during a difficult and prolonged delivery or from the condition known as kernicterus, in which the baby becomes jaundiced because of incompatibility between its blood and that of the mother. In a few cases congenital nerve deafness is an inherited failure of the cochlea…
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childhood disease and disorderInjuries incurred during birth…with lack of oxygen (anoxia). Fetal anoxia may occur from inadequate oxygenation of the mother, low maternal blood pressure, or abnormalities in the uterus, placenta, or umbilical cord that result in inadequate blood flow to the fetus. After birth, anoxia may result from blood loss, shock, or inadequate respiration.…
Read More…with lack of oxygen (anoxia). Fetal anoxia may occur from inadequate oxygenation of the mother, low maternal blood pressure, or abnormalities in the uterus, placenta, or umbilical cord that result in inadequate blood flow to the fetus. After birth, anoxia may result from blood loss, shock, or inadequate respiration.…
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hypoxia…absent, the condition is called anoxia.
Read More…absent, the condition is called anoxia.
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