Pleural pressure positive in
During active expiration, the abdominal muscles are contracted to force up the diaphragm and the resulting pleural pressure can become positive. Positive pleural pressure may temporarily collapse the bronchi and cause limitation of air flow Ref: guyton and hall textbook of medical physiology 12 edition page number:316,317,318
End of inspiration
End of expiration
End of forced expiration
Sta or beginning of inspiration
Respiratory system