Which of the following muscles would be most helpful for forceful expiration?

Question

Quizplus · Accepted Answer

The abdominal wall muscles, specifically the rectus abdominis, external obliques, and internal obliques, are the primary muscles used for forceful expiration by compressing the abdominal viscera and pushing them up against the diaphragm. The diaphragm and external intercostals are involved in inhalation, while the sternocleidomastoids are involved in neck movements and not respiratory function.

Which of the Following Muscles Would Be Most Helpful for Forceful