Pulmonary artery
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| Artery: Pulmonary artery | |
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| Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Pulmonary artery labeled at upper right.) | |
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| Diagram of the alveoli with both cross-section and external view. | |
| Latin | truncus pulmonalis, arteria pulmonalis |
| Gray's | subject #141 543 |
| Source | right ventricle |
| Vein | pulmonary vein |
| Precursor | truncus arteriosus |
| MeSH | Pulmonary+Artery |
| Dorlands / Elsevier | t_20/12826098 |
| Cardiology Network |
 Discuss Pulmonary artery further in the WikiDoc Cardiology Network |
| Adult Congenital |
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| Biomarkers |
| Cardiac Rehabilitation |
| Congestive Heart Failure |
| CT Angiography |
| Echocardiography |
| Electrophysiology |
| Cardiology General |
| Genetics |
| Health Economics |
| Hypertension |
| Interventional Cardiology |
| MRI |
| Nuclear Cardiology |
| Peripheral Arterial Disease |
| Prevention |
| Public Policy |
| Pulmonary Embolism |
| Stable Angina |
| Valvular Heart Disease |
| Vascular Medicine |
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The pulmonary arteries carry blood from the heart to the lungs. They are the only arteries (other than 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 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
 Bronchial anatomy |
 Bronchi, bronchial tree, and lungs |
 Pulmonary circuit |
 Anatomy of lungs. |
 Front view of heart and lungs. |
 Transverse section of thorax, showing relations of pulmonary artery. |
 Base and diaphragmatic surface of heart. |
 The position and relation of the esophagus in the cervical region and in the posterior mediastinum. Seen from behind. |
See also
- Chronic obstructive lung disease
- Pulmonary hypertension
- Thromboembolic disease
- Pulmonary circulation
- Rasmussen's aneurysm
External links
- 53805116 at GPnotebook
- pulmonary+trunk at eMedicine Dictionary
- SUNY Labs 20:01-0106 - "Heart: The Pericardial sac and Great vessels"
- SUNY Labs 20:07-0105 - "Heart: Openings of Great Vessels into the Pericardial Sac"
- SUNY Figs 19:05-06 - "Mediastinal surface of the right lung."
- SUNY Figs 19:06-02 - "Mediastinal surface of the left lung."
- Histology at BU 13802loa
Cardiovascular system | |
|---|---|
| Systemic circulation | Heart → Aorta → Arteries → Arterioles → Capillaries → Venules → Veins → Vena cava → Heart |
| Pulmonary circulation | Heart → Pulmonary arteries → Lungs → Pulmonary vein → Heart |
gl:Arteria pulmonar it:Arteria polmonare nl:Longslagader ja:肺動脈 nn:Lungepulsåresimple:Pulmonary artery sr:Плућно артеријско стабло
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
