The correct answer for this question is It increases airway and intrathoracic pressures.
The pressure inside the pleural cavity is referred to as intrapleural pressure in physiology. It is characterized as negative pressure when the pressure inside the pleural cavity is typically only a little bit lower than the ambient pressure. Pneumothorax may result when the pleural cavity is torn or ruptured and the intrapleural pressure rises above the ambient pressure.
Different from intrathoracic pressure is intrapleural pressure. The pleural space only encompasses the region between the parietal and visceral pleura around the lungs, whereas the thoracic cavity also contains the lungs, heart, and pleura.
The ventilation stage, ambient pressure, and the size of the intrapleural cavity all influence intrapleural pressure.
There is a negative intrapleural pressure when at rest. The lungs enlarge as a result of the transpulmonary pressure this produces.
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