Video Details
Circulation and Respiration: Respiratory system
| Grade Levels: | 3 - 12 |
|---|---|
| Length: | 00:00:34 |
| Website: | https://www.uen.org/emedia |
| Usage rights: | Download and retain personal copies in perpetuity. |
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Air flows through the trachea, which branches into the bronchial tubes, which lead to the lungs. The lungs are made of millions of balloon-like structures called alveoli, which are surrounded by capillaries.
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