Volumes & capacities Flashcards
1
Q
What does lung volume measure?
A
Amount of air passing in and out of lungs
2
Q
What is TLC?
A
Total lung capacity (total amount in lungs)
3
Q
What is TLC dependent on?
A
Age, sex, height
4
Q
TLC is subdivided into range of potential air volumes, these are?
A
Tidal volume (TV)
Inspiratory reserve
5
Q
What is tidal volume?
A
Amount passed in and out during one breath
6
Q
What is inspiratory reserve?
A
Lungs still have space after normal breath that could fill lungs
7
Q
What is potential capacity for respiration called?
A
Inspiratory reserve volume (IRV)
8
Q
What is potential capacity of exhalation called?
A
Expiratory reserve volume (ERV)
9
Q
Why can total lung capacity can only be estimated?
A
Small volume always stays in the lungs
(RV, Residual Volume)
