What nonrespiratory air movement helps to clear the upper respiratory passageways?Multiple ChoiceYawningLaughingCoughingSneezing

What other functions does the upper respiratory system have that do notinvolve moving air into the lower respiratory system?

What nonrespiratory air movement is due to a spastic contraction of the diaphragm while the glottis is closed?Multiple ChoiceCoughYawnHiccupSneeze

Which of the following may be essential to maintaining an individual's open airway?

Moving air into the lungs requires:

Which part of the respiratory system pushes and pulls the lungs to draw air in and out?