Gas exchange in humans
- Breathing system
- larynx, trachea
- bronchi, bronchioles
- alveoli
- ribs, diaphragm
- Intercostal muscles and cartilageSupplement
- internal and external
- cartilage keeps trachea open
- Gas exchange surface
- large surface area
- thin surface
- good blood supply
- good ventilation
- VentilationSupplement
- muscles and ribs
- diaphragm
- volume and pressure
- Inspired vs expired air
- oxygen less
- carbon dioxide more
- water vapour more
- limewater test
- Exercise and breathing
- rate and depth increase
- count breaths per minute
- Carbon dioxide stimulusSupplement
- blood CO₂ rises
- detected by brain
- ProtectionSupplement
- goblet cells and mucus
- ciliated cells