You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Transpulmonary pressure is the difference between: and explain in detail?
Transpulmonary pressure is the pressure difference between alveolar pressure and intrapleural pressure. Before the sta of inspiration or at the end of expiration it is about +5cm H2O. Positive transpulmonary pressure keeps the alveoli open. Intrapleural pressure is the pressure between two layers of pleura. It is about -5cm H2O before the sta of inspiration or at the end of expiration. Alveolar pressure is the pressure within the terminal air spaces. It is the sum of pleural pressure and elastic recoil pressure of the lung. It is atmospheric before the sta of inspiration or at the end of expiration. Transthoracic pressure is the pressure difference between alveolar pressure and pressure at the body surface. Ref: Guyton 12th Ed.