Question

Draw and label the human respiratory system

Answer 1

Answer:

Pair of nostrils are present in us, which leads to nasal chamber through nasal passage. The nasal chamber opens into nasopharynx Nasopharynx opens into trachea from larynx. 

Trachea is a long and straight tube, which divides into bronchi. Each bronchi further divides into bronchioles , which gave further rise to alveoli.  is a thin bag like structure, here exchange of gases takes place.

Branching network of bronchi, bronchioles and Alveoli comprises the Lungs. Each lung is covered by a pleural layer. This membrane/layer contain fluid in it, which reduce the friction. 

Answer 2

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