Which of the Following Statements BEST Describes the Kinematics of Expiration

question 13

Multiple Choice

Which of the following statements BEST describes the kinematics of expiration during regular breathing in healthy people?

• A)Diaphragm contracts resulting in passive movement of air out of lungs
• B)Diaphragm relaxes, increases thoracic volume, decreasing lung pressure
• C)Diaphragm contracts, decreases thoracic volume, pushing air out of lungs
• D)Diaphragm relaxes, increases intrapulmonary pressure, resulting in passive movement of air out