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air moves into the lungs when
when air moves into the lungs oxygen
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air moves into the lungs
air moves into the lungs because:
air moves into the lungs because
air flows into the lung when
air going to the lungs travels through
movement of air into the lungs
when does air enter the lungs
how does air get into the lungs
what happens when air reaches the lungs
flow of air into the lungs
which occurs after air enters the lungs
how does air travel to the lungs
air moves into the lungs when, when air moves into the lungs oxygen, air moves into the lungs because quizlet, air moves into the lungs, air moves into the lungs because:, air moves into the lungs because, air flows into the lung when, air going to the lungs travels through, movement of air into the lungs, when does air enter the lungs, how does air get into the lungs, what happens when air reaches the lungs, flow of air into the lungs, which occurs after air enters the lungs, how does air travel to the lungs
