pulmonary arc
Anatomical term for the curved portion of the pulmonary artery; used in medical contexts.
The pulmonary arc is part of the pulmonary artery, located on the path that sends blood from the heart to the lungs.
肺動脈 is the pulmonary artery as a whole, while 肺動脈弓 specifically refers to the arch-like segment.
Compound of 肺 (lung) + 動脈 (artery) + 弓 (arch), directly describing the anatomical structure.