When deep-sea divers breathing air rise too quickly, nitrogen dissolved in blood expands to form painful bubbles {bends}|.
Deep-sea divers breathing air act drunk {nitrogen narcosis}| {rapture of the deep}. Nitrogen narcosis begins at 30 meters deep and prevents working below 60 meters. Oxygen and helium mixtures {heliox} or oxygen, helium, and nitrogen mixtures {trimix} replace air to prevent bends and allow working. Heliox distorts voices and conducts heat efficiently.
4-Medicine-Disease-Kinds-Organ-Nerve-Muscle
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Date Modified: 2022.0225