Normal, quiet exhalation occurs when: Answers: AD A Inspiratory muscles relax B both inspiratory muscles relax and the diaphragm contracts C blood circulation is the lowest D the diaphragm contracts.
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CO4 During eupnea , exhalation begins when Answers A - E A blood circulation is at its lowest B the diaphragm contracts C external intercostals contract D expiratory muscles relax E the diaphragm relaxes
Adi S.
Q1. Normal, quiet exhalation needs which of the following muscles to contract? a. scalenes b. diaphragm c. intercostals d. none of the above Q2. Which of the following pressure differences will keep your lungs inflated at rest? a. pleural cavity pressure < pressure inside lung b. pleural cavity pressure > pressure inside lung c. pleural cavity pressure < atmospheric pressure d. pleural cavity pressure > atmospheric pressure
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