Скачать или смотреть The Air Passageway In Urdu Hindi | Class 10 Biology

The Air Passageway In Urdu Hindi | Class 10 Biology

About This Video ........................
In This Video Lecture You Will Learn Basic Concept The Air Passageway

Air passage ways consist of nostrils, nasal cavities, pharynx, larynx, trachea, bronchi, bronchioles and alveolar ducts which ultimately lead into the alveolar sac. Nasal cavities are lined with mucous membrane of ciliated epithelium. Each nasal cavity is subdivided into three passage ways by the projection of bones from the walls of the internal nose. Air enters the nasal cavity through nostril and the larger dust particles are trapped by the hair and mucus in the nostrils.

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NMDCAT PART 1:    • New 1st Year Biology  

NMDCAT PART 2:    • New 2nd Year Biology  

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