Question

.State the significance of residual volume of air?

Answer 1

Explanation:

The residual volume functions to keep the alveoli open even after maximum expiration. In healthy lungs, the air that makes up the residual volume allows for continual gas exchange to occur between breaths. The oxygen-depleted residual air is then mixed with newly inhaled air to improve gas exchange at the alveoli

Answer 2

The usual volume of the air helps to keep the alveoli open even after there is Deep expiration.

Explanation:

• the tidal volume of a human being is roughly equal to 400 to 500 ml. This lung volumes and capacities are essential in detection of the  functional capacity of the lungs.

• in addition to this there is another essential parameter which is the residual function which helps in the determination of the amount of Air which is present in the long even after expiration. With decrease in  residual volume there can be increased in the obstructive lung diseases such as COPD

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