Question

If one hold his breath after expiration for about 30 sec., would there still be occurring any exchange of respiratory gases in the lung during this period? Explain.

Answer 1

Answer:

yes his body will be full of swet

Answer 2

Residual Volume of Gas

Explanation:

Yes, if someone holds his breath after expiration for about 30 seconds, there would still be occurring exchange of respiratory gases in the lungs during this period. This is because after every normal expiration a small amount of air remains in our lungs which is called residual volume. It is estimated to be about 1100 ml 1200 ml. When one holds his breath, this residual volume of gas will be exchanged in our lungs.