left pulmonary artery

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Related to left pulmonary artery: left atrium, Right pulmonary artery

left pul·mo·nar·y ar·ter·y

the shorter of the two terminal branches of the pulmonary trunk, it pierces the pericardium to enter the hilum of the left lung. Branches ramify and are distributed with the segmental and subsegmental bronchi; frequent variations occur. Typical branches: of the superior lobar arteries [TA] (arteriae lobares superiores pulmonis , under arteria [TA]) are the apical segmental artery [TA] (arteria segmentalis apicalis (dextri et sinistri) [TA]), anterior segmental artery [TA] (arteria segmentalis anterior pulmonis (dextri et sinistri) [TA]), and posterior segmental artery [TA] (arteria segmentalis posterior pulmonis (dextri et sinistri) [TA]), with the latter two having ascending and descending branches [TA] (rami ascendens et descendens [TA]); of the lingular artery [TA] (arteria lingularis [TA]) are the superior lingular artery [TA] (arteria lingularis superior [TA]) and inferior lingular artery [TA] (arteria lingularis inferior [TA]); and of the inferior lobar arteries [TA] (arteriae lobares inferiores pulmonis , under arteria [TA]) are the superior segmental artery [TA] (arteria segmentalis superior pulmonis (dextri et sinistri) [TA]) and a basal part [TA] (pars basalis [TA]) giving rise to anterior, posterior, lateral, and medial basal segmental arteries [TA] (arteriae segmentales basales anterior, posterior, lateralis et medialis [TA]).
Synonym(s): arteria pulmonalis sinistra [TA]

left pulmonary artery

the shorter and smaller of two arteries conveying venous blood from the heart to the lungs, rising from the pulmonary trunk, connecting to the left lung, and tending to have more separate branches than the right pulmonary artery. In the fetus, it is larger and more important than the right pulmonary artery because it provides the ductus arteriosus that degenerates to become a ligament after birth. Compare right pulmonary artery.

left pul·mo·nar·y ar·te·ry

(left pul'mŏ-nar-ē ahr'tĕr-ē) [TA]
The shorter of the two terminal branches of the pulmonary trunk, it pierces the pericardium to enter the hilum of the left lung. Its branches accompany the segmental and subsegmental bronchi. Branches to the superior lobe (rami lobi superioris [TA]) are apical (ramus apicalis [TA]), anterior ascending (ramus anterior ascendens [TA]), anterior descending (ramus anterior descendens [TA]), posterior (ramus posterior [TA]), and lingular (ramus lingularis [TA]), the last having inferior and superior branches (rami lingulares inferior et superior [TA]). Branches to the inferior lobe (rami lobi inferioris [TA]) are the superior branch of the inferior lobe (ramus superior lobi inferioris [TA]) and the medial (medialis), anterior, lateral (lateralis), and posterior basal branches (rami basales [TA]).
References in periodicals archive ?
The association of pulmonary atresia (PA) with anomalous origin of the left pulmonary artery and an absent right pulmonary artery is, however, a very rare occurrence.
The left pulmonary artery (LPA) branch arose directly from the aortic arch.
A large-calibre left pulmonary artery arose from the aortic arch.
In order to make a definite diagnosis, a pulmonary digital subtraction angiography was performed on the patient by entering from the right femoral artery and left pulmonary artery agenesis was observed in the angiography (Fig.
Since agenesis of the left pulmonary artery is known to co-exist very frequently with cardiac anomalies, echocardiography was performed to exclude cardiac pathology, and no cardiac and vascular anomalies were observed.
While right pulmonary artery agenesis was detected in 63% of the cases in the last review, in our case the rarely encountered left pulmonary artery agenesis was detected.
Anomalous origin of the right pulmonary artery from ascending aorta is more frequent as a distinct anomaly, than the left pulmonary artery, but the latter is more often associated with Fallot's tetralogy.
The left pulmonary artery branch could not be detected in standard parasternal short axis view and it was arising from descending aorta.
In our patient the left pulmonary artery was arising from descending aorta instead of ascending aorta.