Which of the Following Is the Last Step That Produces

question 17

Multiple Choice

Which of the following is the last step that produces an inspiration?

• A) the atmospheric pressure becomes lower than the intrapleural pressure.
• B) the diaphragm contracts.
• C) the intercostal muscles contract.
• D) the intra-alveolar pressure becomes lower than the atmospheric pressure.
• E) the intrapleural pressure becomes positive.

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