Accessory muscles of respiration
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Accessory muscles of respiration refer to muscles that provide assistance to the main breathing muscles, mainly when additional power is needed, for example during exercise or those with airway pathologies (e.g. COPD) 1,2.
During normal quiet breathing, inspiration is an active process primarily due to the action of the diaphragm, with contributions from abdominal and external intercostal muscles 2.
Conversely, expiration is a passive process as a consequence of the elastic recoil of the rib cage and associated structures 2.
- accessory inspiratory muscles
- accessory expiratory muscles
- 1. Encyclopedia of Respiratory Medicine. (2006) ISBN: 9780123708793 - Google Books
- 2. Anthony Henry Vernon Schapira, Edward Byrne (M.D.). Neurology and Clinical Neuroscience. (2007) ISBN: 9780323033541 - Google Books
- 3. Steven McGee. Evidence-Based Physical Diagnosis. (2017) ISBN: 9780323392761 - Google Books
- 4. Ratnovsky A, Elad D, Halpern P. Mechanics of Respiratory Muscles. Respiratory Physiology & Neurobiology. 2008;163(1-3):82-9. doi:10.1016/j.resp.2008.04.019 - Pubmed