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Parts of the Human Respiratory System:
1.Nose - first passage of the air.
2. Nasal Passage
3. Trachea- also called windpipe, a hallow tube that serves as the passageway of the air into the lungs.
4. Bronchi- also called bronchial tubes, two branching tubes that connect to the trachea to the lungs.
5. Bronchioles- a finer subdivision of the bronchi, hairlike tube that connect to the alveoli.
6. Alveoli- also called the airsacs, allow gas exchange in lungs.
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