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Related to pleura: peritoneum, Cervical pleura


 [ploor´ah] (Gr.)
the serous membrane investing the lungs (visceral or pulmonary pleura) and lining the walls of the thoracic cavity (parietal pleura); the two layers enclose a potential space, the pleural cavity. adj., adj pleu´ral.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


, gen. and pl.


(plūr'ă, plūr'ē), [TA]
The serous membrane enveloping the lungs and lining the walls of the pulmonary cavities.
Synonym(s): membrana succingens
[G. pleura, a rib, pl. the side]
Farlex Partner Medical Dictionary © Farlex 2012

pleura 1

n. pl. pleurae (plo͝or′ē)
A thin serous membrane in mammals that envelops each lung and folds back to make a lining for the chest cavity.

pleu′ral adj.

pleura 2

Plural of pleuron.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


, pl. pleurae (plūr'ă, -ē) [TA]
The serous membrane enveloping the lungs and lining the walls of the pleural cavity.
[G. pleura, a rib, pl. the side]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(ploo'ra) plural.pleurae [Gr., side]
Enlarge picture
A serous membrane that enfolds both lungs and is reflected upon the walls of the thorax and diaphragm. The pleurae are moistened with a serous secretion that reduces friction during respiratory movements of the lungs. See: pleural effusion; mediastinum; thorax; illustration

costal pleura

Parietal pleura.

pleura diaphragmatica

The part of the pleura covering the upper surface of the diaphragm.

mediastinal pleura

The portion of the parietal pleura that extends to cover the mediastinum.

parietal pleura

The serous membrane that lines the chest cavity; it extends from the mediastinal roots of the lungs and covers the sides of the pericardium to the chest wall and backward to the spine. The visceral and parietal pleural layers are separated only by a lubricating secretion. These layers may become adherent or separated by air or by blood, pus, or other fluids, when the lungs or chest wall are injured or inflamed.
Synonym: costal pleura

pleura pericardiaca

The portion of the pleura covering the pericardium.

pleura pulmonalis

Visceral pleura.

visceral pleura

The pleura that covers the lungs and enters into and lines the interlobar fissures. It is loose at the base and at the sternal and vertebral borders to allow for lung expansion.
Medical Dictionary, © 2009 Farlex and Partners


The thin, double-layered membrane that separated the lungs from the inside of the chest wall. The inner layer is attached to the lung and the outer to the inside of the chest cavity. A film of fluid between the two layers provides lubrication to allow smooth movement during breathing.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


the membrane that covers the lung and lines the innermost wall of the thorax.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Pleura or pleurae

A delicate membrane that encloses the lungs. The pleura is divided into two areas separated by fluid-the visceral pleura, which covers the lungs, and the parietal pleura, which lines the chest wall and covers the diaphragm.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
If pleural effusion is not timely drained, fibrin is easy to form fibrous strips to separate effusion, and the separated or alveolate effusion may be adhered to the pleura to induce pleural thickening; patients will have chest pain and difficult breath.13,14 If only anti-tuberculosis drug treatment is given to those patients, the slow absorption of pleural effusion and aggravated pleural thickening and adhesion may cause pulmonary insufficiency or lung failure.15
PL1 indicates tumor invasion of the elastic layer of visceral pleura without reaching the visceral pleural surface; PL2 defines the tumor invasion of the visceral pleural surface; and PL3 specifies tumor invasion of the parietal pleura or chest wall.
Con el avance de la tecnologia y las nuevas tecnicas de inmunohistoquimica, se considera que este tumor es de origen mesenquimal (tumor localizado), actualmente se denomina tumor fibroso solitario de pleura (10).
However, on CT thorax, mediastinal pleura was also involved in 46.4% which is pathognomonic of mesothelioma (Table 1).
Localized mesothelioma of the pleura: benign and malignant variants.
Secondary tumors are the most common cancer to involve the pleura by far, and metastatic carcinoma, usually of pulmonary origin, manifests with malignant pleural effusions and/or multifocal serosal involvement.
In cases where pleural metastasis occurs, there is tumour cell seeding of the mesothelial surface of pleura. There can be invasion in subserous layer also.
Lymph nodes was affected most commonly in 2009, 2010, 2011 and 2013, while pleura and joints were the most common sites of involvement in 2012 and 2014, respectively.
This was originally described by Lichtenstein [15] to correctly identify the pleura. The intercostal ribs appear as the wings of a bat and the pleural line represents the bat's body.
Lung, pleura and parietal pericardium fragments were processed and cultivated under anaerobic and microaerobic conditions in 5% sheep blood agar, MacConkey agar and chocolate blood agar.
Evidence read out on behalf of pathologist Dr Jason Shannon said the cause of Mr Grindell's death was pneumonia, caused by a malignant mesothelioma of the left lung pleura.