All formulas of the chapter at one glance.
1
Total Lung Capacity is the total amount of air that can be present in the lungs after a maximum inhalation effort. Let us know how to calculate the total lung capacity using the formula given below. Total Lung Capacity = Vital Capacity of lungs + Residual Volume of lungs
2
The volume of air a person is able to expire after a normal inspiration is called the expiratory capacity. It is the sum total of tidal volume and expiratory reserve volume. Expiratory Capacity = Tidal Volume + Expiratory reserve volume
3
Functional residual capacity is the amount of air that normally remains inside lungs after a normal expiration. Let us now see the formula to calculate functional residual capacity. Functional residual capacity = Expiratory reserve volume + Residual Volume
4
Pulmonary ventilation is also called Minute volume of respiration. It is the volume of air a person can inhale per minute. Minute volume of respiration = Tidal volume x Respiratory frequency (Breathing Rate)
5
The partial pressure for oxygen is much greater than that of carbon dioxide. The partial pressure of any gas can be calculated by multiplying the atmospheric pressure with the percent of gas in the gaseous mixture. We know that before the air reaches the lungs it is humidified in the respiratory tract. Thus, we include water pressure also in the partial pressure equation while calculating the partial pressure of oxygen.
