right pulmonary artery

The longer of the 2 terminal branches of the pulmonary trunk (right & left pulmonary arteries). An elastic artery with many elastic lamella in the tunica media. Origin: pulmonary artery (trunk) Branches: (frequent variations) 1) superior lobar arteries 2) middle lobar artery 3) inferior lobar arteries Course: 1) passes transversely across the midline in the superior mediastinum 2) passes inferior to the aortic arch 3) enters the hilum of the right lung as part of its root

Properties

FORM: right pulmonary artery ORIGIN: pulmonary artery or trunk (PA)

References

Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999

Components

intima; tunica intima tunica media vascular endothelium