Artificial breathing aids
- Created by: siobhan
- Created on: 04-05-13 14:43
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- Artificial breathing aids
- there are many reasons why someone cannot get enough oxygen into their blood stream
- if the alveoli are damaged, the surface area for gas exchange is reduced
- if the tubes leading to the lungs are narrowed, less air can be moved through them
- if the person is paralysed, their muscles will not work to pull the ribcage up and out.
- several types of breathing aid have been developed
- the 'iron lung' was used for people with polio who were paralysed. the person lay with their chest sealed in a large metal cylinder.
- when air is drawn out of the cylinder the person's chest moved out and they breathed in. the vacuum which was formed inside the cylinder created NEGATIVE PRESSURE
- when air was pumped back into the cylinder it created pressure on the chest and forced air out of the person's lungs
- the 'iron lung' was used for people with polio who were paralysed. the person lay with their chest sealed in a large metal cylinder.
- there are many reasons why someone cannot get enough oxygen into their blood stream
- several types of breathing aid have been developed
- the 'iron lung' was used for people with polio who were paralysed. the person lay with their chest sealed in a large metal cylinder.
- when air is drawn out of the cylinder the person's chest moved out and they breathed in. the vacuum which was formed inside the cylinder created NEGATIVE PRESSURE
- when air was pumped back into the cylinder it created pressure on the chest and forced air out of the person's lungs
- the 'iron lung' was used for people with polio who were paralysed. the person lay with their chest sealed in a large metal cylinder.
- positive pressure aids are often smaller, easier to manage in the home and can be linked to computers for contol
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