1. The effects of smoking are felt by _______________ systems.
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2. Smoking affects the _______________ system by interfering with the oxygen-carrying capacity of the blood and thus contributing to the lower birth weight of infants from mothers who smoke.
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3. The respiratory tract, with its cilia that line the trachea and mucous tissues lining the nasal cavity, aids the functions of the _______________ system.
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4. _______________ from cigarette smoke binds with greater affinity to hemoglobin than does oxygen.
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5. Cigarette smoking is linked to _______________ .
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6. Oxygen exchange occurs in the _______________ of the lungs.
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7. When carbon monoxide binds with hemoglobin, the resulting molecule is called _______________ .
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8. The functions of the respiratory system are critical to the _______________ system where the brain uses up to 20% of the oxygen carried by the blood.
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9. The respiratory system is responsible for _______________ .
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10. The _______________ system functions with the respiratory system in distributing oxygen to cells throughout the body.
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