A doctor asked a patient to make a deep exhalation after a normal inhalation. What muscles contract during such exhalation?

Answer options

1. Trapezius muscles
2. Pectoral muscles
3. External intercostal muscles
4. Abdominal muscles
5. Diaphragm

Explanation

A doctor asked a patient to make a deep exhalation after a normal inhalation. What muscles contract during such exhalation?Deep or forced exhalation is achieved by the abdominal and the internal intercostal muscles. During this process, the air is forced or exhaled out. The Diaphragm and External Intercostal muscles contract for inhalation.