Lung Compliance and It's Diseases Essays

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Pathophysiology essay Lung compliance and its disorders Philippe Wöllenstein Study group 3052; Topic No.62 29.04.2015 ------------------------------------------------- Abstract ------------------------------------------------- The essay comprises an introduction explaining the term pulmonary compliance. The next section includes a definition and characteristics of the group of diseases-restrictive pulmonary disorders. Further on a short summary of restrictive lung diseases and especially their cause follows trying to contribute a better knowledge of the topic to the reader. In the end the reader can find a short conclusion. Table of contents General information about lung compliance Restrictive pulmonary diseases…show more content…
The average compliance levels at about 200 milliliters of air/cm of water transpulmonary pressure. It is to mention that those pressures mentioned varie in inspiration (inspiratory compliance curve) and expiration (expiratory compliance curve). Visualization can be done according to the compliance diagram. The question that arises now is which forces act upon the lung tissue to create the trans-pulmonary/alveolar and finally the compliance of the lung? To answer it one has to look closer at the structure of the pulmonary tissue, which is found to be elastic. Interwoven into the parenchyma we can find elastin and collagen fibers which determine the elastic forces of the lung. The other big factor playing it’s role is the surface tension of the fluid lining the alveolus. II. Restrictive lung disorders Is a group of disorders characterized by a decrease in lung capacity either caused by alterations in the lung wall lining, disease of the internal wall of the lung or by neuromuscular mechanisms. Translated into physiological values: Total lung capacity (TLC) decreases; Vital capacity of the lung(VC) decreases ; Functional Residual capacity(FRC) decreases if caused by parenchymal lung disease the gas exchange mechanism decreases as well. Further on based on anatomical construct we have to differentiate between intrinsic and extrinsic causes of restrictive lung disorders. The intrinsic
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