Physiology

Front 1

What is Hypemic hypoxia?

Back 1

Hypemic hypoxia - caused by a reduction in the O2-carrying capacity of the blood. Anemia and blood loss are the most common cause of this type. Carbon monoxide from smoking and exhaust fumes are potentially dangerous to the aviator. Nitrates, and sulfa drugs also cause this type of forming compounds with hemoglobin that block its ability to attach O2 for transport.

Front 2

Name the four types of Hypoxia:

Back 2

1. Hypemic hypoxia
2. Stagnant hypoxia
3. Histotoxic hypoxia
4. Hypoxic hypoxia

Front 3

What is Stagnant hypoxia

Back 3

Stagnant hypoxia-reduction in systematic blood flow or regional blood flow. Such conditions as heart failure, shock and the venous pooling of blood encountered during positive-G maneuvers predispose the individual to stagnant hypoxia. In addition, environmental extremes, prolonged sittin and restrictive clothing can produce local stagnant hypoxia. ( like sitting to long on the can, and when you get up your legs do wont to move.

Front 4

What is Histotoxic hypoxia

Back 4

Histotoxic hypoxia-results when there is interference with the use of O2 by body tissues. Alcohol, narcotics, carbon monoxide and certain poisons such as nicotine and cyanide interfere with the cells' ability to use an other wise adequate supply of O2.

Front 5

what is Hypoxic hypoxia

Back 5

Hypoxic hypoxia-occurs when there is insufficient O2 in the air that is breathed or when conditions prevent the diffusion of O2 from the lungs to the blood stream. This is the type that is most likely to be encountered at altitude. It is due to the reduction of the PO2 at high altitudes.