Which of the Following Is Most Responsible for Keeping the Lung

question 76

Multiple Choice

Which of the following is most responsible for keeping the lung surface and the thoracic wall from separating?

• A)the presence of surfactant
• B)the negative pressure in the alveolar space
• C)the force exerted by the external intercostal muscles
• D)the surface tension of the intrapleural fluid
• E)alveolar pressure is higher than atmospheric pressure

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