Medical Definition of pulmonary circulation
: the passage of venous blood from the right atrium of the heart through the right ventricle and pulmonary arteries to the lungs where it is oxygenated and its return via the pulmonary veins to enter the left auricle and participate in the systemic circulation
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Dictionary: Definition of "pulmonary circulation" Britannica.com: Encyclopedia article about "pulmonary circulation"
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