lung volumes

Question 1

what is tidal volume and approximately how much is it

Answer 1

the volume of air inspired(breathed in) or expired(breathed out) per breathe. approximately 0.5 litres of air at rest and increases during exercise

Question 2

what is minute ventilation and how can it be calculated

Answer 2

the volume of air inspired or expired per minute
calculated by number of breathes(per minuite) X tidal volume

Question 3

what is the inspiratory reserve volume and expiratory reserve volume?

Answer 3

IVR is the volume of air that can be forcibly inspired after a normal breath, EVR is the volume of air that can be forcibly expired after a normal breathe

Question 4

what is residual volume

Answer 4

the amount of air that remains in the lungs after maximal expiration

Question 5

what are the changes of the 5 lung volumes during exercise

Answer 5

tidal volume increases, IVR decreases, EVR slightly decreases, residual volume stays the same and minute ventilation largely increases