Which of the following does NOT happen during forceful expirations
A)The accessory expiratory muscles contract.
B)The external intercostals contract.
C)The abdominal muscles contract.
D)The diaphragm contracts.

Question

Quizplus · Accepted Answer

During forceful expirations, the external intercostals do not contract; instead, they contract during inhalation to raise the ribcage. Accessory expiratory muscles, abdominal muscles, and relaxation (rather than contraction) of the diaphragm are involved in forceful expiration.

Which of the Following Does NOT Happen During Forceful Expirations