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Total lung volume equals Vital Capacity + Residual Volume.
To accurately measure residual volume in a container, you can use a graduated cylinder or a measuring cup with clear markings. Fill the container with the substance, making sure it is level with the top. Then, carefully pour the substance into the measuring tool and note the volume. Subtract this volume from the total volume of the container to determine the residual volume.
residual volume
Functional residual capacity (FRC) is the volume of air remaining in the lungs after a normal exhalation, while residual volume (RV) is the volume of air remaining in the lungs after a maximal exhalation. FRC includes both the expiratory reserve volume and the residual volume, while RV is the volume of air that cannot be exhaled from the lungs.
Functional Residual Capacity (FRC) = Expiratory Reserve Volume (ERV) + Residual Volume (RV)
Residual volume
Residual volume allows gas exchange to go on continuously
The function of residual volume is to keep enough pressure in the lungs to keep them from collapsing.
Residual volume of air is the volume of air remaining in the lungs after maximal exhalation. It is not possible to voluntarily exhale this air, as it helps to keep the lungs inflated and prevents them from collapsing. Residual volume plays a key role in maintaining the oxygen-carbon dioxide exchange in the lungs.
To calculate total lung capacity (TLC), you need to measure both vital capacity (VC) and the residual volume (RV). Vital capacity represents the maximum amount of air a person can exhale after a maximum inhalation, while residual volume is the amount of air remaining in the lungs after a full exhalation. TLC is then calculated using the formula: TLC = VC + RV. Therefore, measuring residual volume is essential for determining total lung capacity.
residual (reserve) volume
Tidal volume is the volume of air that moves in and goes out in asingle stroke, and is abut 500ml.