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ICSE Class 6 Answered

What is the role of Nassal passages in respiratory system  
Asked by piyushsharma707 | 03 Sep, 2019, 08:34: PM
answered-by-expert Expert Answer
The nasal airways are lined with cilia and kept moist by mucous secretions. It helps to filter out solid particles from the air and moisten the air, which prevents damage to the delicate tissues that form the respiratory system. The moisture in the nose helps to heat and humidify the air, increasing the amount of water vapour the air entering the lungs contains. This helps to keep the air entering the nose from drying out the lungs and other parts of our respiratory system. So basically it does the following:
 

1. Filters the air by the hairs and mucous in the nose

2. Moistens the air

3. Warms the air


Answered by Sivanand Patnaik | 07 Sep, 2019, 10:08: PM
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