2.1 Understanding of Lung Volumes and the impact on Sport and Physical Activity Flashcards
what is tidal volume
volume of air breathed in or out per breath
what is inspiratory reserve volume
volume of air that can be forcibly inspired following a normal breath
what expiratory reserve volume
volume of air that can be forcibly expired following a normal breath
what is residual volume
volume of air that remains in the lungs after maximum expiration
what is minute ventilation
volume of air breathed in or out per minute
how many lobes does the left lung have
2 lobes
how many lobes does the right lung have
3 lobes
label a diagram of the pathway of air
what is the pathway of air
- mouth/nasal cavity
- pharynx
- trachea (epiglottis)
- larynx
- trachea
- bronchi
- bronchioles
- alveoli
what happens when we inhale
- the diaphragm tightens to change into a flat shape
- this opens up the lungs so air rushes in due to decreased pressure
where does gas exchange take place
alveoli
what are the muscles used in inspiration at rest
diaphragm, external intercostal muscles
what are the muscles used in inspiration during exercise
diaphragm, external intercostal muscles, sternocleidomastoid, scalenes and pectoralis minor
muscles used in expiration at rest
passive: diaphragm and external intercostal muscles just relax
muscles used in expiration during exercise
internal intercostals, abdominals
