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The total lung capacity is calculated using which of the following formulas? a. residual volume+tidal volume+inspiratory reserve volume, b. residual volume+expiratory reserve volume+inspiratory reserve volume, c. expiratory reserve volume+tidal volume+inspiratory reserve volume, d. residual volume+expiratory reserve volume+tidal volume+inspiratory reserve volume.
Which of these statements about intrapulmonary pressure and intrapleural pressure is true?
a. The intrapulmonary pressure is always subatmospheric.
b. The intrapleural pressure is always greater than the intrapulmonary pressure.
c. The intrapulmonary pressure is greater than the intrapleural pressure.
d. The intrapleural pressure equals the atmospheric pressure.
Intrapulmonary pressure must be lower than __________. pressure for inspiration to occur.
Pressure imposed by gases in the atmosphere is known as atmospheric pressure. The pressure within the lungs' alveoli is known as intrapulmonary pressure. Lung collapse will occur if the intrapleural pressure equals the ambient pressure. The diaphragm and external intercostal muscles flex to start the process of inspiration.
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