Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching How Do We Cough? - The Mechanism of Coughing - Cough Reflex Animation - Learn Human Body. and this video is uploaded by Science Art at 2014-12-27T12:11:09-08:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [usAqJoVYVSc]