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1
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Gas carried in the blood
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5
|
Tiny tubes within each lung
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9
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Band of muscle which helps us breathe
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11
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Tube which brings air into each lung
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12
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Present in exhaled air
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13
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Burning of food to make energy
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14
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Produced during respiration
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15
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Muscles found between the ribs
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16
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Tiny blood vessels found in the lungs
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18
|
A process which takes air into the body
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|
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2
|
Gas ______, takes place in the alveoli
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3
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78% of inhaled air
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4
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Turns milky in the presence of Carbon dioxide
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6
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Keep trachea open
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7
|
Air sacs
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8
|
Another name for the voicebox
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10
|
Exercise ____________ your breathing rate
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17
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Damaging to the breathing system
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19
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Protects the lungs
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