What are the excretory products of lungs?

The excretory products of lungs are:

- Carbon dioxide (CO2): This is the primary waste product of cellular respiration, and it is exhaled through the lungs.

- Water vapor: This is produced as a byproduct of cellular respiration and is also exhaled through the lungs.

- Mucus: This is a sticky substance that helps to trap dust, dirt, and other particles in the air we breathe. It is produced by the mucous membranes in the lungs and is expelled through coughing or sneezing.

- Nitrogen: This is a gas which makes up a large part of the air we breathe. It is inhaled and exhaled without any change in its composition.

- Dust, pollutants and other particles: These are inhaled and trapped by the mucus in the lungs. They are then expelled through coughing or sneezing.