Visceral pleura: Difference between revisions
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#REDIRECT [[Pleura#Visceral pleura]] |
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{{Infobox Anatomy | |
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Name = Pulmonary pleura | |
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Latin = pleura visceralis, pleura pulmonalis | |
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GraySubject = 238 | |
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GrayPage = 1087 | |
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Image = Gray968.png | |
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Caption = A transverse section of the [[thorax]], showing the contents of the middle and the posterior [[mediastinum]]. The [[pleural cavity|pleural]] and [[pericardial cavity|pericardial cavities]] are exaggerated since normally there is no space between parietal and visceral pleura and between [[pericardium]] and [[heart]]. | |
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Image2 = | |
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Caption2 = | |
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System = | |
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Artery = | |
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Vein = | |
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Nerve = [[pulmonary plexus]] | |
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Lymph = | |
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Precursor = | |
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MeshName = | |
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MeshNumber = | |
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DorlandsPre = p_24 | |
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DorlandsSuf = 12646806 | |
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}} |
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Each [[lung]] is invested by an exceedingly delicate serous membrane, the [[pleura]], which is arranged in the form of a closed invaginated sac. A portion of the serous membrane covers the surface of the [[lung]] and dips into the fissures between its lobes; it is called the '''pulmonary pleura''' (or '''visceral pleura'''). |
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{{R from merge}} |
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The visceral pleura is attached directly to the lungs, as opposed to the parietal pleura, which is attached to the opposing abdominal cavity. The space between these two delicate membranes is known as the intrapleural space. Contraction of the diaphragm causes a negative pressure within this space and forces the lungs to expand, resulting in passive inhalation. This process can be made forceful through the contraction of the external intercostal muscles, forcing the rib cage to expand and aiding to the negative pressure within the intrapleural space, which causes the lungs to fill with air. |
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{{R to section}} |
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{{Authority control}} |
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==External links== |
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* {{GPnotebook|74121277}} |
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* {{NormanAnatomy|thoraxlesson2}} |
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* {{UMichAtlas|lung_lymph}} - "Transverse section through lung" |
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* {{OklahomaHistology|14_15}} - "Lung" |
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* {{LoyolaMedEd|Grossanatomy/thorax0/thor_lec/thor6.html}} |
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{{Gray's}} |
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{{Thoracic cavity}} |
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{{Uncategorized stub|date=September 2010}} |
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{{Respiratory-stub}} |
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Latest revision as of 21:29, 13 November 2024
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