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Diagram showing the general layout of air sacs in a bird. Birds have a system of air sacs in their ventilation system. [2] The air sacs work to produce a unidirectional flow where air enters and exits the lung at the same rate, contrasting the lungs of other tetrapods such as mammals where air enters and exits the lung in a tidal ventilation.
The commercials follow a set of anthropomorphic young lungs named Little Lungs that "smoked as a teen and never grew to normal size." [2] [3] Little Lungs tries to enjoy leisure activities with his friends but always ends up facing horrific consequences in his attempts to do so. FCB's approach towards animated entertainment for PSAs was a ...
Currently, Its music video has over 4.5 billion views on YouTube. [7] "Baby Shark Dance" – a children's viral educational music video made by South Korean education brand Pinkfong that went viral due to its poppy and repetitive lyrics. [8] It is currently the most viewed YouTube video, with over 15 billion views as of January 2025. [9]
The lungs together weigh approximately 1.3 kilograms (2.9 lb), and the right is heavier. The lungs are part of the lower respiratory tract that begins at the trachea and branches into the bronchi and bronchioles, which receive air breathed in via the conducting zone. These divide until air reaches microscopic alveoli, where gas exchange takes ...
They publish animated videos of both traditional nursery rhymes and their own original children's songs. As of April 30, 2011, it is the 105th most-subscribed YouTube channel in the world and the second most-subscribed YouTube channel in Canada, with 41.4 million subscribers, and the 23rd most-viewed YouTube channel in the world and the most ...
6.5 years = 2,374 days and 56,976 hours, or 3,418,560 minutes. 5,772 cigarettes per year for 54 years = 311,688 cigarettes. 3,418,560/311,688=11 minutes per cigarette.
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The normal relaxed state of the lung and chest is partially empty. Further exhalation requires muscular work. Inhalation is an active process requiring work. [4] Some of this work is to overcome frictional resistance to flow, and part is used to deform elastic tissues, and is stored as potential energy, which is recovered during the passive process of exhalation, Tidal breathing is breathing ...