This is a brief overview of pulmonary anatomy, physiology, and function.
• Respiration: movement of respiratory gas molecules across cell membranes.
• Ventilation: exchange of air between the lungs and atmosphere.
• Ventilation: movement of gases in and out of lungs
• Distribution of gases from the upper airways and tracheobronchial tree to the alveoli
• Diffusion: the passive two-way transfer of respiratory gases from the alveoli, plasma, RBCs, and body cells
• Perfusion/transport: movement of oxygenated blood through pulmonary capillaries & veins; delivery to the cells
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Date last modified: January 7, 2013.
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