Question

Define vital capacity.what is it's significe​

Answer 1

Answer:

Vital capacity is the maximum volume of air that can be exhaled after a maximum inspiration. It is about 3.5 – 4.5 litres in the human body. It promotes the act of supplying fresh air and getting rid of foul air, thereby increasing the gaseous exchange between the tissues and the environment.

Explanation:

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Answer 2

Answer:

the maximum volume of air a person can breathe in after a forced expiration. This includes ERV, TV, IRV or the maximum volume of air a person can breathe out after a forced inspiration .

(1000-1100)+500+(2500-3000)=4000-4600