Respiratory Systems-B5
- Created by: Shannon
- Created on: 31-05-13 09:10
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- Respiratory Systems
- Amphibians are restricted to moist habitats: permeable skin to obtain oxygen
- Excessive water loss could result in death
- Fish obtain oxygen from water being forced over filaments, so they do not work in air
- Vital capacity-maximum amount of air that can be exchanged
- Tidal air-amount of air normally breathed in and out at rest
- Residual air- air that cannot be forced out of the lungs
- Gases exchange by diffusion between alveoli and air
- Efficient exchange adaptations- large surface area, good blood supply, one cell thick
- Readings are a measure of different lung capacities, help diagnose disease
- Efficient exchange adaptations- large surface area, good blood supply, one cell thick
- Asthma attack-inflamed linings, mucus/fluid build up, bronchioles contract, narrowing the airways
- Asbestosis-inflammation and scarring of lung tissue, resuce gaseous exchange
- Chemical particles become trapped in air sacs
- Cystic fibrosis- too much mucus from the bronchides
- Asbestosis-inflammation and scarring of lung tissue, resuce gaseous exchange
- Amphibians are restricted to moist habitats: permeable skin to obtain oxygen
- Fish obtain oxygen from water being forced over filaments, so they do not work in air
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