Dynamic Compression Refers To

Question

Dynamic compression refers to
A) Compression of the airways due to muscular compression of the chest
B) Compression of the alveoli during forceful expiration
C) Compression of the pulmonary arteries and veins during forceful expiration
D) Compression of the airways during forceful expiration
E) Loss of positive pressure on the lungs during forceful expiration

Accepted Answer

Dynamic compression occurs when the pressure inside the airways becomes less than the pressure outside the airways, typically during forceful expiration, leading to a narrowing or collapse of the airways. This is a common phenomenon in conditions like COPD, where the elasticity of the lungs is reduced, making it harder to keep the airways open during expiration.