What method involves breathing 100 percent oxygen to eliminate nitrogen from the body?

Breathing 100 percent oxygen to eliminate nitrogen from the body is referred to as denitrogenation. This method is primarily used in the context of diving and aviation physiology to reduce the risk of decompression sickness, which can occur when nitrogen bubbles form in the body after returning to surface pressure. By inhaling pure oxygen, the nitrogen that is dissolved in the body's tissues is driven out more effectively than it would be at normal air pressure. This process enhances the elimination of nitrogen and helps to ensure a safer ascent from deeper depths.

In contrast, decompression refers to the gradual reduction of pressure experienced after a dive, while oxygenation typically pertains to the process of delivering oxygen to the body, particularly in medical settings. Hypoxia cure can refer to various methods aimed at correcting low oxygen levels in the body, but it does not specifically address the elimination of nitrogen as denitrogenation does. Understanding these distinctions is crucial in the context of aerospace physiology and the management of gas exchange in the body during flights or dives.