Intrapleural pressure is
In physiology, intrapleural pressure (also called intrathoracic pressure) refers to the pressure within the pleural cavity. Normally, the pressure within the pleural cavity is slightly less than the atmospheric pressure, in what is known as negative pressure Ref: guyton and hall textbook of medical physiology 12 edition page number: 316,317,318
Transpulmonary pressure + Alveolar pressure
Transpulmonary pressure - Alveolar pressure
Transmural pressure + Alveolar pressure
Alveolar pressure - Transpulmonary pressure
Respiratory system