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trace your path from the right femoral vein to the lower lobe of the right lung via the right pulmonary artery. describe all the major structures you pass by or through, just like a tour guide would do. now that we have arrived at the lung, describe the structures you see and narrate how the body combats the invading bactrium, then cross the alveolar membrane and trace your route out of the body through the nose. this has to be in 1000 to 1200 words thank-you
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