Pulmonary artery 509921 222393242 2008-06-29T03:05:33Z BOT-Superzerocool 338065 robot Modifying: [[ar:جذع رئوي]] {{Infobox Artery | Name = Pulmonary artery | Latin = truncus pulmonalis, arteria pulmonalis | GraySubject = 141 | GrayPage = 543 | Imagemap = {{Heart diagram 250px}} | Caption = Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Pulmonary artery labeled at upper right.) | Image2 = Alveoli diagram.png | Caption2 = Diagram of the alveoli with both cross-section and external view. | BranchFrom = [[right ventricle]] | BranchTo = | Vein = [[pulmonary vein]] | Precursor = [[truncus arteriosus (embryology)|truncus arteriosus]] | Supplies = | MeshName = Pulmonary+Artery | MeshNumber = A07.231.114.715 | DorlandsPre = t_20 | DorlandsSuf = 12826098 }} The '''pulmonary arteries''' carry [[blood]] from the [[heart]] to the [[lungs]]. They are the only [[artery|arteries]] (other than [[Umbilical artery|umbilical arteries]] in the fetus) that carry deoxygenated blood. In the human [[heart]], the '''pulmonary trunk''' ('''pulmonary artery''' or '''main pulmonary artery''') begins at the base of the [[right ventricle]]. It is short and wide - approximately 5 cm (2 inches) in length and 3 cm (1.2 inches) in diameter. It then branches into two pulmonary arteries (left and right), which deliver deoxygenated blood to the corresponding [[lung]]. == Role in disease == [[Pulmonary hypertension]] occurs alone and as a consequence of a number of [[pulmonology|lung diseases]]. It can be a consequence of [[heart disease]] ([[Eisenmenger's syndrome]]) but equally a cause (right-ventricular [[heart failure]]); it also occurs as a consequence of [[pulmonary embolism]] and [[scleroderma]]. It is characterised by reduced exercise tolerance. Severe forms, generally, have a dismal prognosis. ==Additional images== <gallery> Image:Bronchial anatomy.jpg|Bronchial anatomy </gallery> <gallery> Image:Illu bronchi lungs.jpg|Bronchi, bronchial tree, and lungs Image:Illu pulmonary circuit.jpg|Pulmonary circuit Image:Alveolus diagram.svg|Alveolus diagram </gallery> <gallery> Image:Lungs anatomy.png|Anatomy of lungs. Image:Gray490.png|Front view of heart and lungs. Image:Gray503.png|Transverse section of thorax, showing relations of pulmonary artery. </gallery> <gallery> Image:Gray556.png|Base and diaphragmatic surface of heart. Image:Gray1032.png|The position and relation of the esophagus in the cervical region and in the posterior mediastinum. Seen from behind. </gallery> == See also == * [[Chronic obstructive lung disease]] * [[Pulmonary hypertension]] * [[Thromboembolic disease]] * [[Pulmonary circulation]] * [[Rasmussen's aneurysm]] ==External links== * {{GPnotebook|53805116}} * {{eMedicineDictionary|pulmonary+trunk}} * {{SUNYAnatomyLabs|20|01|01|06}} - "Heart: The [[Pericardial sac]] and [[Great vessels]]" * {{SUNYAnatomyLabs|20|07|01|05}} - "Heart: Openings of Great Vessels into the Pericardial Sac" * {{SUNYAnatomyFigs|19|05|06}} - "[[Mediastinal]] surface of the [[right lung]]." * {{SUNYAnatomyFigs|19|06|02}} - "Mediastinal surface of the [[left lung]]." * {{BUHistology|13802loa}} {{cardiovascular_system}} {{Arteries of chest}} [[Category:Arteries]] [[Category:Thorax]] [[ar:جذع رئوي]] [[bs:Plućne arterije]] [[ca:Artèria pulmonar]] [[de:Arteria pulmonalis]] [[es:Arteria pulmonar]] [[fr:Artère pulmonaire]] [[gl:Arteria pulmonar]] [[it:Arteria polmonare]] [[la:Arteriae pulmonares]] [[nl:Longslagader]] [[ja:肺動脈]] [[nn:Lungepulsåre]] [[pl:Pień płucny]] [[pt:Artéria pulmonar]] [[ru:Лёгочная артерия]] [[simple:Pulmonary artery]] [[sr:Плућно артеријско стабло]] [[sh:Plućno arterijsko stablo]]