Pressure - volume curves in the lung is given here. The pressure-volume curves of the total respiratory system (PTR), lungs (PL), and chest wall (Pw) are plotted together with standard lung volumes. Point A indicate which of the following?
Ans. B. Resting lung volumeThe pressure is zero at a lung volume that corresponds to the volume of gas in the lungs at FRC is also known as Resting Respiratory volume/capacity because the opposing forces like the elastic recoil of the lungs and the chest wall are equal and they balance each other at FRC.
Closing volume of lung
Resting lung volume
Residual volume of lung
Expiratory reserve volume
Respiratory System