Zusammenfassung der Ressource
6.4 Gas Exchange
- NATURE OF SCIENCE
- Obtain evidence for theories
- Epidemiological studies have
contributed to our understanding
of the causes of lung cancer
- Ventilation
- Gas exchange
- Cell respiration
- Trachea + bronchi
+ bronchioles
- Alveoli
- Cells
- Type I cells
- Thin alveolar cells that are
adapted to carry out gas
exchange
- Type II cells
- Secrete a solution
containing surfactant
- Prevent the sides of
the alveolus adhering
to each other
- By reducing
surface tension
- Draw a diagram to show the structure
of an alveolus and and adjacent capillary
- Antagonistic muscle action
- Diaphragm
- Pressure changes inside
the thorax that force air in
and out of the lungs
- External + Internal
Intercostal muscles
- Abdominal muscles
- Monitoring of ventilation in
humans at rest and after
mild and vigorous exercise
- Spirometer + LoggerPro
- Ventilation rate
- Tidal volume
- Diseases
- Aim 8
- Causes and social consequences
- Lung cancer
- Emphysema