pulmonary artery

pulmonary artery
pulmonary artery n an arterial trunk or either of its two main branches that carry oxygen-deficient blood to the lungs:
a) a large arterial trunk that arises from the conus arteriosus of the right ventricle, ascends in front of the aorta, and branches into the right and left pulmonary arteries called also pulmonary trunk
b) a branch of the pulmonary trunk that passes under the arch of the aorta to the right lung where it divides into branches called also right pulmonary artery
c) a branch of the pulmonary trunk that passes to the left in front of the descending part of the aorta, gives off the ductus arteriosus in the fetus which regresses to the ligamentum arteriosum in the adult, and passes to the left lung where it divides into branches called also left pulmonary artery

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the artery that conveys blood from the heart to the lungs for oxygenation: the only artery in the body containing deoxygenated blood. It leaves the right ventricle and passes upwards for 5 cm before dividing into two, one branch going to each lung. Within the lungs each pulmonary artery divides into many fine branches, which end in capillaries in the alveolar walls. See also pulmonary circulation.

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truncus pulmonalis.

Medical dictionary. 2011.

Look at other dictionaries:

  • Pulmonary artery — Artery: Pulmonary artery …   Wikipedia

  • Pulmonary artery — Pulmonary Pul mo*na*ry, a. [L. pulmonarius, from pulmo, onis, a lung; of uncertain origin, perh. named from its lightness, and akin to E. float: cf. F. pulmonaire. Cf. {Pneumonia}.] Of or pertaining to the lungs; affecting the lungs; pulmonic.… …   The Collaborative International Dictionary of English

  • pulmonary artery — UK / US noun [countable] Word forms pulmonary artery : singular pulmonary artery plural pulmonary arteries medical one of two arteries (= tubes) that carry blood from the right ventricle of your heart to your lungs …   English dictionary

  • pulmonary artery — the artery that conveys blood from the heart to the lungs for oxygenation: the only artery in the body containing deoxygenated blood. It leaves the right ventricle and passes upwards for 5 cm before dividing into two, one branch going to each… …   The new mediacal dictionary

  • pulmonary artery — noun one of two arteries (branches of the pulmonary trunk) that carry venous blood from the heart to the lungs (Freq. 21) • Syn: ↑arteria pulmonalis • Hypernyms: ↑artery, ↑arteria, ↑arterial blood vessel • Hyponyms: ↑ …   Useful english dictionary

  • pulmonary artery — noun Date: 1704 an artery that conveys venous blood from the heart to the lungs see heart illustration …   New Collegiate Dictionary

  • pulmonary artery — Anat. an artery conveying venous blood from the right ventricle of the heart to the lungs. See diag. under heart. [1695 1705] * * * …   Universalium

  • pulmonary artery — noun The artery that connects the right ventricle of the heart to the lungs …   Wiktionary

  • pulmonary artery — noun the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation …   English new terms dictionary

  • pulmonary artery — /pʌlmənri ˈatəri/ (say pulmuhnree ahtuhree) noun an artery conveying (venous) blood from the right ventricle of the heart to the lungs …   Australian-English dictionary

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