Question

Define vital capacity. What is its significance?

Answer 1

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

→It's formula is Expiratory reserve volume + Tidal volume + Inspiratory reserve volume.

→It is around 3.5 - 4.5 litres in our body.

→It promotes to get in more fresh air.

→It helps in getting rid of foul air.

→It helps in gaseous exchange between atmosphere and tissues.