Left pulmonary artery

Arteria pulmonalis sinistra

  • Acronym: LPA

Definition

The left pulmonary artery passes inferiorly and posteriorly and exits the pericardium below the aortic arch at the ligamentum arteriosum. It arches over and behind the left mainstem bronchus and curves around three-fourths of the circumference of the left upper lobe bronchus. The left main pulmonary artery has a long extra pericardial length before giving off its first branch for the left superior lobe. It continues as the interlobar artery. 

Branches of left pulmonary artery (LPA) :

Text by Antoine Micheau, MD - Copyright IMAIOS

This definition incorporates text from the wikipedia website - Wikipedia: The free encyclopedia. (2004, July 22). FL: Wikimedia Foundation, Inc. Retrieved August 10, 2004, from http://www.wikipedia.org


Comparative anatomy in animals

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