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Flashcards in Lung Volumes & Capacities Deck (18)
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0
Q

As depth of breathing increases this means…

A

Tidal volume increases, because we are increasingly using our inspiratory reserve volume and expiratory reserve volume

1
Q

As we exercise our depth of breathing…

A

Increases

2
Q

Our vital capacity does not change =

A

Tidal volume + inspiratory + expiratory reserve volume

3
Q
Tidal volume (TV) =
Change during exercise:
A

Amount of air breathed in or out per breath

Increases

4
Q

Inspiratory reserve volume (IRV)=

Change during exercise =

A

Maximal amount of air forcibly inspired following end of resting inspiration

Decreases

5
Q

Expiratory reserve volume (ERV) =

Change during exercise =

A

Maximal volume expired following end of resting expiration

Decreases

6
Q

Residual volume (RV) =
(TLC - VC)
Change during exercise =

A

Volume of air remaining in the lungs at the end of maximal expiration

Remains the same

7
Q

Inspiratory capacity (IC)=
(TV + IRV)
Change during exercise =

A

Maximum volume of air inspired from resting expiratory levels

Increases

8
Q

Vital capacity (VC) =
(IRV + TV + ERV)
Change during exercise =

A

Maximum volume of air forcibly expired following maximal inspiration

Slight decrease

9
Q

Total lung capacity (TLC) =
(VC + RV)
Change during exercise =

A

Volume of air that is in the lungs following maximal inspiration

Slight decrease

10
Q

Minute ventilation (VE) =
(TV x f)
Change during exercise =

A

Volume of air inspired or expired per minute

Dramatic increase

11
Q

Minute ventilation =

A

Moving air in and our of our lungs

Minute ventilation is the amount of air that is moved in and out of the lungs in one minute

A function of our depth of breathing (tidal volume) and the frequency of breathing

VE = frequency of breathing x tidal volume (ml)

During exercise both the depth and rate increase that VE fan approach 180-200 for male endurance athletes

12
Q

Lung function is measured using a …

A

Peak flow meter or a more complex machine called a spirometer

13
Q

Capacity varies with…

A

Age
Sex
Body shape
Fitness level

14
Q

Respiratory fitness is determined by measuring the …

A

Maximum amount of oxygen that can be used by a person’s body - VO2 max

15
Q

The higher the VO2 max…

A

The fitter the individual

16
Q

Effects of exercise:

A

More oxygen is required by the muscles and more carbon dioxide is produced for removal
Breathing rate increases
Depth of breathing increases
Blood flow through lungs increases

17
Q

Effects of smoking:

A

Damages your lungs
Reduces the amount of oxygen that can be carried in blood
Damages the lining of airways and increases the amount of mucus produced
Reduces alveolar function
Increases the risk of lung infection, emphysema, bronchitis, asthma and lung cancer
Reduces vital capacity
Reduces aerobic fitness