Which muscle(s) is (are) contracted to exhale forcibly?
A) diaphragm alone
B) internal intercostals and rectus abdominus
C) rectus abdominis and diaphragm
D) external intercostals and diaphragm

Question

Quizplus · Accepted Answer

To exhale forcibly, the internal intercostal muscles and rectus abdominis muscles contract to forcefully decrease the volume of the thoracic cavity, pushing air out of the lungs. The diaphragm relaxes during this process.

Which Muscle(s) Is (Are) Contracted to Exhale Forcibly