5 Questions
Which muscles are involved in passive expiration?
Internal intercostal muscle and abdominal muscles of the forward wall
What is the role of alveolar surfactant?
Decreases surface tension during expiration
What factors lead to passive expiration?
Lifted thorax elastic resistance and elastic resistance of costal cartilages of a thorax
Which muscles are involved in active expiration?
Internal intercostal muscle and abdominal muscles of the forward wall
What does the surface tension in lungs regulate?
Surfactant
Test your knowledge about inspiratory and expiratory muscles in the respiratory system. Explore the factors that contribute to passive expiration, including the lifted thorax and elastic resistance of the lungs.
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