The Respiratory System

 This video explains the vivid animation and real-life examples to demonstrate the respiration process, including the transfer of oxygen into the bloodstream and the effect of exercise on the respiratory system.

Respiration in Organisms

 This topic explains the process of respiration and the modes of respiration in different living things.

The Human Respiratory System

 This video explains that Air passes through the tiny hair in the nasal cavity, and then through the pharynx, larynx and windpipe before reaching the lungs. 

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