Lung Compliance
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Top Contributors - Kapil Narale, Shalini Varadhan, Lucinda hampton, Kim Jackson, Uchechukwu Chukwuemeka and Mohit Chand
Introduction[edit | edit source]
The extent to which the lungs will expand for each unit increase in trans pulmonary pressure is called Lung Compliance.
Normal Range: The total compliance of both lungs together in normal adult human being average is about 200 millilitres of air per centimetre of water trans-pulmonary pressure. That is every time the trans pulmonary pressure increases one centimetre of water the lung volume after 10 to 20 seconds will expand 200 milliliteres.
Compliance Diagram[edit | edit source]
The diagram relates the lung volume changes to changes in the trans pulmonary pressure. It differs for inspiration and expiration.
Compliance Curve[edit | edit source]
The two compliance curves are:
- Inspiratory Compliance curve
- Expiratory Compliance curve
Types of Compliance[edit | edit source]
Dynamic Compliance[edit | edit source]
This describes the compliance measured during breathing which involves a combination of Lung compliance and air resistance.
Static Compliance[edit | edit source]
This describes the pulmonary compliance when there is no air flow like an inspiratory pass
Important Factors[edit | edit source]
The two important factors of Lung compliance :
Elastic Fibers[edit | edit source]
More fibers in the tissue lead to ease in expand-ability and there for compliance.
Surface tension[edit | edit source]
It is decrease due to the production of surfactant to prevent collapse.
Resources[edit | edit source]
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