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State the role of the following in the process of respiration in humans:nasal cavity,diaphragm,alveoli

Posted by Anshika Singhal 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 6 years, 3 months ago

Nasal hairs: These are fine hairs present in the inner lining of the nasal passage which help in filtering the air passing through nostrils so that, germ, fungus and spores free air could reach the lungs. Along with filteration of pathogens another function of nasal hair is that it moisturize and warm the air during inhalation process.
Diaphragm: It is a muscular partition between the thoracic and abdominal region in our body. Movement of diaphragm helps in the breathing process.
Alveoli: These are balloon-like structures, which increase the surface area for the gaseous exchange in lungs.
Nasal cavity: Nasal passage conditions the air entering it, i.e. warms and moisturises it.

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