While every effort has been made to follow citation style rules, there may be some discrepancies.Please refer to the appropriate style manual or other sources if you have any questions.

You are watching: What separates the thoracic cavity from the abdominopelvic cavity


Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Feedback TypeSelect a type (Required)Factual CorrectionSpelling/Grammar CorrectionLink CorrectionAdditional InformationOther

Our editors will review what you’ve submitted and determine whether to revise the article.

Join ubraintv-jp.com"s Publishing Partner Program and our community of experts to gain a global audience for your work!
*

Chest scan showing a large hydropneumothorax from pleural empyema on the right side of the chest cavity (A is air; B is fluid).

The penetration of air into the pleural cavity from outside, as from a penetrating wound of the chest, or from within, by rupture of dilated alveoli (air sacs of the lung) or of a cyst, will produce a pneumothorax, converting this cavity into a positive pressure chamber and collapsing the lung, which in turn will lead to decreased oxygenation of the venous blood. The collapse may also have a deleterious effect on the heart.

Inflammation of the pleura, usually diffuse, affecting one or both sides, is called pleurisy. Two forms are distinguished: (1) simple, dry, or fibrinous pleurisy; and (2) exudative pleurisy, in which the membrane gives off excessive fluid. Since the pleura is well supplied by nerves, pleurisy can be extremely painful, especially as the lung moves in respiration. Common symptoms are pain, shortness of breath, and fever. Treatment is directed toward evacuation of fluid and alleviation of the underlying condition, often an infected lung but more rarely a diffuse inflammatory condition such as rheumatoid arthritis.

Rupture of the thoracic duct, the main channel for lymph, gives rise to chylothorax, characterized by escape of lymph into the pleural space.

Epidemic pleurodynia, or Bornholm disease, is an acute infection of the various tissues of the pleural cavity by group B coxsackieviruses or certain other enteroviruses. The disease is characterized by a general feeling of ill health and by pain in the chest muscles and the upper part of the abdomen. That pain is usually increased by respiration and cough, and pain in other muscles is often present. The condition subsides in two to five days but sometimes may take weeks to disappear.

See more: Br A Small Amount Of Acid Is Added To A Buffer Solution ? A Small Amount Of Acid Is Added To A Buffered

The Editors of Encyclopaedia ubraintv-jp.comThis article was most recently revised and updated by Kara Rogers, Senior Editor.