Pulmonary_artery, Pulmonary_artery Information, Pulmonary


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Artery: Pulmonary artery
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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

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.jpg

Bronchial anatomy

Illu bronchi lungs.jpg

Bronchi, bronchial tree, and lungs

Illu pulmonary circuit.jpg

Pulmonary circuit

Alveolus diagram.svg

Alveolus diagram

Lungs anatomy.png

Anatomy of lungs.

Gray490.png

Front view of heart and lungs.

Gray503.png

Transverse section of thorax, showing relations of pulmonary artery.

Gray556.png

Base and diaphragmatic surface of heart.

Gray1032.png

The position and relation of the esophagus in the cervical region and in the posterior mediastinum. Seen from behind.

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

v • d • e

Cardiovascular system

Blood | Heart → Aorta → Arteries → Arterioles → Capillaries → Venules → Veins → Vena cava → Heart → Pulmonary arteries → Lungs → Pulmonary vein

v • d • e List of arteries of torso - chest
Pulmonary / coronary	right coronary: SA nodal - AV nodal - atrial - right marginal - posterior interventricular left coronary: anterior interventricular - left circumflex - left marginal
Ascending aorta	aortic arch - brachiocephalic (thyreoidea ima) - common carotid
Subclavian	internal thoracic: anterior intercostal - thymic - pericardiacophrenic - terminal (musculophrenic, superior epigastric) costocervical trunk: highest intercostal (posterior intercostal 1-2) - deep cervical
Descending / thoracic aorta	visceral: bronchial - esophageal - mediastinal parietal: posterior intercostal 3-11 - subcostal - superior phrenic

This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia

Pulmonary_artery

Contents

Role in disease

Additional images

See also

External links