翻訳と辞書 Words near each other ・ Pulmonary hypoplasia ・ Pulmonary infiltrate ・ Pulmonary insufficiency ・ Pulmonary interstitial emphysema ・ Pulmonary laceration ・ Pulmonary neuroendocrine tumor ・ Pulmonary pathology ・ Pulmonary Pharmacology & Therapeutics ・ Pulmonary pleurae ・ Pulmonary plexus ・ Pulmonary rehabilitation ・ Pulmonary scientist ・ Pulmonary sequestration ・ Pulmonary shunt ・ Pulmonary stretch receptors ・ Pulmonary surfactant ・ Pulmonary surfactant protein D ・ Pulmonary surfactant-associated protein A1 ・ Pulmonary surfactant-associated protein B ・ Pulmonary surfactant-associated protein C ・ Pulmonary talcosis ・ Pulmonary thrombectomy ・ Pulmonary thromboendarterectomy ・ Pulmonary toxicity ・ Pulmonary tractotomy ・ Pulmonary valve ・ Pulmonary valve stenosis ・ Pulmonary vein ・ Pulmonary vein stenosis ・ Pulmonary venoocclusive disease Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pulmonary surfactant ： ウィキペディア英語版 Pulmonary surfactant Pulmonary surfactant is a surface-active lipoprotein complex (phospholipoprotein) formed by type II alveolar cells. The proteins and lipids that make up the surfactant have both hydrophilic and hydrophobic regions. By adsorbing to the air-water interface of alveoli hydrophilic head groups in the water and the hydrophobic tails facing towards the air, the main lipid component of surfactant, dipalmitoylphosphatidylcholine (DPPC), reduces surface tension. ==Function== * To increase pulmonary compliance. * To prevent atelectasis (collapse of the lung) at the end of expiration. * To facilitate recruitment of collapsed airways. Alveoli can be compared to gas in water, as the alveoli are wet and surround a central air space. The surface tension acts at the air-water interface and tends to make the bubble smaller (by decreasing the surface area of the interface). The gas pressure (''P'') needed to keep equilibrium between the collapsing force of surface tension (''γ'') and the expanding force of gas in an alveolus of radius ''r'' is expressed by the law of Laplace: :$P\; =\; \backslash frac$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pulmonary surfactant」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.