Inhalation is always ____, whereas exhalation is usually ____.
A)active; active
B)active; passive
C)passive; active
D)passive; passive
E)variable depending on oxygen content; fixed

Question

Quizplus · Accepted Answer

Inhalation is an active process because it requires the diaphragm and intercostal muscles to contract, creating a negative pressure that draws air into the lungs. Exhalation is usually passive because it occurs when these muscles relax, allowing the lungs to return to their resting state and expel air.

Inhalation Is Always ____, Whereas Exhalation Is Usually ____

Inhalation Is Always , Whereas Exhalation Is Usually