Bronchial artery

Infobox Artery
Name = PAGENAME
Latin = rami bronchiales partis thoracicae aortae, arteriae bronchiales
GraySubject = 153
GrayPage = 600


Caption = Bronchial artery labeled at center left.
BranchFrom = thoracic aorta
BranchTo =
Vein = Bronchial veins
Supplies = lungs
MeshName =
MeshNumber =
DorlandsPre = r_02
DorlandsSuf = 12689141
In human anatomy, the bronchial arteries help supply the lungs with oxygenated blood. Although there is much variation, there are usually two bronchial arteries that run to the left lung, and one to the right lung.

Origin

The "left bronchial arteries" (superior & inferior) usually arise directly from the thoracic aorta.

The single "right bronchial artery" usually arises from one of the following:
* 1) the thoracic aorta at a common trunk with the right 3rd posterior intercostal artery
* 2) the superior bronchial artery on the left side

Distribution to lung

The bronchial arteries supply blood to the bronchi and connective tissue of the lungs. They travel with and branch with the bronchi, ending about at the level of the respiratory bronchioles. They anastomose with the branches of the pulmonary arteries, and together, they supply the visceral pleura of the lung in the process.

Note that much of the blood supplied by the bronchial arteries is returned via the pulmonary veins rather than the bronchial veins.

Each bronchial artery also has a branch that supplies the esophagus.

Comparison with pulmonary arteries

It is easy to confuse the bronchial arteries with the pulmonary arteries, because they both supply the lungs with blood, but there are important differences:

Pathology

The bronchial arteries are typically enlarged and tortuous in chronic pulmonary thromboembolic hypertension. [cite journal |author=Kauczor H, Schwickert H, Mayer E, Schweden F, Schild H, Thelen M |title=Spiral CT of bronchial arteries in chronic thromboembolism |journal=J Comput Assist Tomogr |volume=18 |issue=6 |pages=855–61 |year= |pmid=7962789]

ee also

* Bronchial veins
* Pulmonary thromboendarterectomy

References

External links

* - "Branches of the ascending aorta, arch of the aorta, and the descending aorta."
*
* [http://anatquest.nlm.nih.gov/aq/ImageXml?xml=DSR100006257-xsl.xml Bronchial arteries] - anatquest.nlm.nih.gov.


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • bronchial artery — n any branch of the descending aorta or first intercostal artery that accompanies the bronchi …   Medical dictionary

  • bronchial artery — noun arteries that accompany the bronchioles (Freq. 25) • Hypernyms: ↑artery, ↑arteria, ↑arterial blood vessel • Part Holonyms: ↑lung * * * noun : any branch of the descending aorta or first intercostal artery that accompanies …   Useful english dictionary

  • Bronchial vessels — can refer to: * bronchial artery * bronchial vein …   Wikipedia

  • Bronchial veins — Infobox Vein Name = PAGENAME Latin = venae bronchiales GraySubject = 172 GrayPage = 667 Caption = Caption2 = DrainsFrom = DrainsTo = azygos vein, hemiazygos vein Artery = Bronchial artery MeshName = MeshNumber = DorlandsPre = v 05 DorlandsSuf =… …   Wikipedia

  • Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… …   Medical dictionary

  • artery — ar·ter·y (är’tə rē) n. pl. ar·ter·ies 1) Anatomy Any of the muscular elastic tubes that form a branching system and that carry blood away from the heart to the cells, tissues, and organs of the body. 2) A major route of transportation into which… …   Word Histories

  • Pulmonary artery — Artery: Pulmonary artery …   Wikipedia

  • Common carotid artery — Artery: Common carotid artery Schematic of the proximal aorta and its branches …   Wikipedia

  • Circumflex branch of left coronary artery — Artery: Circumflex branch of left coronary artery Base and diaphragmatic surface of heart. (Circumflex branch not visible, but would be near the coronary sinus.) …   Wikipedia

  • Right coronary artery — Artery: Right coronary artery Sternocostal surface of heart. (Right coronary artery visible at left.) Latin arteria coronaria dextra Gray s …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.