Question

Define vital capacity. What is its significance?

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Answer 1

Hey you .Here is your answer.
Vital capacity (VC) is the maximum amount of air a person can expel from the lungs after a maximum inhalation. ... A normal adult has a vital capacity between 3 and 5 litres. A human's vital capacity depends on age, sex, height, mass, and ethnicity.

Answer 2

heya !!!

■Vital capacity is the maximum volume of air that person breathe's in after a forced expiration.

■It is around 3.5 to 4.5 litres in our body .

■It promotes to get in more fresh air .

■It Helps in get rid of foul air .

■It increases gaseous exchange between atmosphere and tissues.

■It is equal to the sum of expiratory reserve formula , Tidal volume and Inspiratory reserve .

■A person's vital capacity can be measured by a regular spirometer .

hope it helps u dear ^_^