Examlex
Five "schedules" of controlled substances resulted from the Comprehensive Drug Abuse Prevention and Control Act of 1970.
Single Breath
A process of inhaling once then exhaling, often used in respiratory testing to assess lung function and capacity.
Oxygen
A chemical element essential for life, necessary for cellular respiration in most organisms, and a major component of Earth's atmosphere.
Carbon Dioxide
A colorless, odorless gas produced by burning carbon and organic compounds and by respiration, considered a greenhouse gas.
Alveoli
Small, air-filled sacs in the lungs where gas exchange between the air and blood takes place.
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