Respiratory system Flashcards
Route of air
- Nasal cavity
- Pharynx
- Larynx
- Trachea
- Bronchi
- Bronchiole
- Alveoli duct
- Alveoli sac
- Alveolius
Tidal volume (TV)
The volume of air inhaled or exhaled per breath at rest.
- resting - 500ml per breath
- exercising - 3-4L per breath
Breathing frequently (f)
The number of breaths in 1 minute.
- resting - 12-15 breaths per minute
- exercising - 40-50 breaths per minute
Minute ventilation (VE)
The volume of air inspired or expired per minute
- resting - 6-7.5L per minute
- exercising - 120-180+L per minute
Gaseous exchange
The exchange of o2 and co2 in the alveoli sac.
Partial pressure
The pressure exerted by an individual gas when it exits within and mixture of gases
Altitude training
Above 1500m
Effects of altitude training on the respiratory system
- decreases aerobic performances
- decreases vo2 max
- cold air warms and moistens the lungs
Advantages of altitude training
- increases red blood cells
- enhances o2 transport
- increases external respiration
- delay in fatigue
Disadvantages of altitude training
- expensive
- altitude sickness
- benefits lost quickly
Oxy-haemoglobin curve (Bohr shift)
- moves to the right
- Increases co2 levels
- increases body temperature
