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Human Body Systems Unit- Respiratory System
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| A | B |
| nasal cavity | warms, moistens, and filters air |
| mouth | moistens air |
| larynx | voicebox |
| lungs | major organs in the respiratory system |
| bronchi | tubes attaching the trachea to the lungs |
| diaphragm | muscle used to inhale and exhale |
| pharynx | throat |
| trachea | windpipe |
| bronchioles | smaller air passageways- attached to the bronchi |
| alveoli | air sacs covered in capillaries- where gas exchange occurs |
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