💙🩸➡️🫁

#pulmonary artery #blue blood #deoxygenated #wolf doolb #lungs blood supply #heart lung connection #pulmonary circulation

✌️🟦🩸➡️🫀

#venae cavae #two veins #blue blood #circulation #deoxygenated #blood vessels

🫀↗️�z🔵

#pulmonary artery #artery from heart #right ventricle exit #blue blood vessel #deoxygenated #pulmonary circulation #anatomy