Pulmonary artery

The pulmonary artery or pulmonary artery is a large artery ( artery). There are two pulmonary arteries ( pulmonary arteries ), a left and a right, each representing branches of the company resulting from the right ventricle, pulmonary trunk. The division point, which is called the bifurcation of the pulmonary trunk, lies at the level of the fourth thoracic vertebra, just below the aortic arch. The right and left pulmonary artery to draw the respective portals of entry of the lung ( Lungenhili ). The pulmonary arteries are part of the pulmonary circulation (small circuit) and are with their branches in addition to the pulmonary vein ( pulmonary veins ) to the vasa publication of the lung. The pulmonary arteries carry deoxygenated blood, which in the course of pulmonary respiration in the capillaries of the alveoli (alveoli ) is enriched with oxygen.

Both pulmonary arteries branch out within the lungs into an upper lobe and a lower lobe artery, the right in addition to a middle lobe artery. These are further subdivided into segment branches, which draw together with the segmental bronchi to the lung segments.

The pulmonary artery may be narrowed in many congenital heart defects or applied incorrectly. This usually occurs in combination with other malformations of the heart and leads to complex diseases.


  • J. Fanghänel (ed.): Waldeyer human anatomy. de Gruyter 2003, 17th edition, p 831 ISBN 3-11-016561-9
  • Hermann Voss, Robert Mr. Linger: Paperback anatomy, Volume II: intestines, the circulatory system. Gustav Fischer Verlag, Stuttgart, 1988, 17th edition, pp. 339 ff ISBN 3-437-00502-2
  • Artery of the thoracic cavity
  • Lung