The functional residual capacity (FRC) is the volume of air present in the lungs at the end of a normal expiration. The usual volume in a healthy male is 5.5 L. Total lung capacity (TLC) is the volume of air in the lungs at the end of a maximal inspiration. The usual volume in a healthy male is 1.0 L. The expiratory reserve volume (ERV) is the maximum volume of air that can be breathed out during maximal expiration. The usual volume in a healthy male is 3.0 L. The inspiratory reserve volume (IRV) is the maximum volume of air that can be breathed in during maximal inspiration. The residual volume (RV) is the volume of air in the lungs after a maximum expiration. The usual volume in a healthy male is 4.5 L. The vital capacity (VC) is the maximum volume of air that can be breathed out following a maximal inspiration. The usual volume in a healthy male is 0.5 L. The tidal volume (TV) is the volume of air drawn in and out of the lungs during normal breathing. It is important to have an understanding of lung volumes and capacities and the definitions of these in adults. Lung volumes, which are also known as respiratory volumes, refer to the various volumes of gas in the lungs at any given time during the respiratory cycle. Lung capacities are derived from a summation of different lung volumes.
0 kommentar(er)
