| respiration |
1. the exchange of oxygen and carbon dioxide between the atmosphere and the cells of the body. The process includes ventilation (inhalation and exhalation), the diffusion of oxygen from pulmonary alveoli to the blood and of carbon dioxide from the blood to the alveoli, and the transport of oxygen to and carbon dioxide from the body cells. Symbol R. 2. ventilation (def. 2). 3. the exergonic metabolic processes in living cells by which molecular oxygen is taken in, organic substances are oxidized, free energy is released, and carbon dioxide, water, and other oxidized products are given off by the cell; called also cell r.
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| respiration p. |
pyelography with a diphasic film showing the kidney under several phases of the respiratory cycle.
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| respiration r. |
the number of breaths per minute, usually measured by movements of the chest.
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| respiration calorimeter |
An apparatus for measuring heat produced from exchange of respiratory gases.
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