noun
pulmonary circulation
Medical term for the flow of blood from the heart to the lungs and back. Often contrasted with 体循環 (systemic circulation).
See also: 体循環
肺循環は、血液に酸素を取り込む役割を果たす。
Pulmonary circulation plays the role of taking oxygen into the blood.
体循環 is systemic circulation (heart → body → heart), while 肺循環 is pulmonary circulation (heart → lungs → heart).
Compound of 肺 (lung) and 循環 (circulation). A straightforward medical term.