KROK 1 2015 – Question 91 · KROK (Medicine) · Physiology
A doctor asked a patient to make a deep exhalation after a normal inhalation. What muscles contract during such exhalation?
- A. External intercostal muscles
- B. Trapezius muscles
- C. Abdominal muscles
- D. Diaphragm
- E. Pectoral muscles
Hint
Think about whether quiet breathing out is active or passive, and which muscles take over when expiration has to be forced.
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